Dialysis systems

Vantive Prismaflex: troubleshooting and error codes

The ServiceForge knowledge base holds 192 documented symptoms for the Vantive Prismaflex, with 406 ranked causes, 306 diagnostic checks with test points and expected values, and 85 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

TMP too high patient safety

Transmembrane pressure has reached user-set pressure limit. High pressure in main filter indicates restriction or clotting.

Ranked causes

1. Ultrafiltration rate too high for blood flow rate (common)
2. Inadequate anticoagulation of extracorporeal circuit (common)
3. Kinked lines in blood flowpath (occasional)
4. Syringe pump failed or incorrectly installed (occasional)
5. Air leak between deaeration chamber monitor line and return pressure sensor (occasional)
6. Filter or effluent pod failure (rare)
7. Filter or effluent pressure sensor failed (rare)
8. Wrong measurement of filter or effluent pressure (rare)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Filter clotted patient safety

Blood in filter is clotted, increasing pressure drop observed

Ranked causes

1. Inadequate anticoagulation of extracorporeal circuit (common)
2. Ultrafiltration too high (common)
3. Kinked lines in blood flowpath (occasional)
4. Syringe pump anticoagulation system failure (occasional)
5. Air leak in deaeration chamber monitor line (occasional)
6. Wrong measurement of filter or effluent pressure (rare)
7. Filter, effluent or return pressure sensor failed (rare)

First check

Verify syringe pump plunger is moving upward during treatment

Test point: Syringe pump
Expected: Plunger moving upward

2 more checks with pass and fail actions, 7 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Plasmafilter clotting patient safety

Blood in plasmafilter is clotted, showing increasing pressure drop

Ranked causes

1. Inadequate anticoagulation of extracorporeal circuit (common)
2. Blood flow rate or plasmafiltration rate too high (common)
3. Kinked lines in blood flowpath (occasional)
4. Syringe pump anticoagulation system failure (occasional)
5. Air leak in deaeration chamber monitor line (occasional)
6. Filter or return pressure sensor failed (rare)
7. Wrong measurement of filter or effluent pressure (rare)

7 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Set disconnection alarm patient safety

Alarm triggered when filter pressure is ≤+10 mmHg but expected operating point is >+10 mmHg

Ranked causes

1. Filter pressure pod not installed or debris in sensor housing (common)
2. Line between blood pump and filter disconnected (common)
3. Blood flowpath obstructed before filter pressure pod (occasional)
4. Blood flow rate too low for access device (occasional)
5. Filter pressure sensor failed (rare)
6. Return line disconnection with return pressure alarm failure (rare)
7. Pressure measurement failure (rare)

First check

Inspect filter pressure pod installation and cleanliness

Test point: Filter pressure pod and sensor housing
Expected: Pod installed, no debris

4 more checks with pass and fail actions, 7 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Ca Line Not Connected patient safety

Dedicated calcium infusion line is not properly connected to the calcium syringe or wrong line type is installed.

Ranked causes

1. Calcium line is not connected to the syringe (common)
2. Wrong line connected (common)
3. Unused syringe line on disposable set connected to calcium syringe (occasional)
4. Wrong syringe size installed (occasional)
5. Air in syringe (occasional)
6. Missing non-return valve on calcium infusion line (rare)

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Check Access patient safety

Access pressure deviation from operating point: ±50 mmHg (±70 mmHg if blood flow>200ml/min) depending on operating point range, or pressure above 0 mmHg when operating point below –10 mmHg.

Ranked causes

1. Possible leakage or disconnection of access line or catheter (common)
2. Possible kink or obstruction in access line or catheter (common)
3. Patient is coughing or being moved (occasional)
4. Catheter is clotted or out of position (occasional)
5. Blood flow rate is too high (occasional)
6. Blood flowpath is obstructed after access pressure pod (rare)

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Flow problem detected on fluid line patient safety

System detects abnormal flow rate on indicated fluid path; alarm triggered; operator or service action required

Ranked causes

1. Closed clamp or major leak on line or bag (common)
2. Effluent drain port not fully closed (occasional)
3. Bag connector not firmly tightened (Luer connection) (occasional)
4. Incorrect puncture of solution bag (spike connection) (occasional)
5. Air bubbles in solution line or effluent (occasional)
6. Non-occlusive pump or scale failure (rare)

First check

Inspect for closed clamps or leaks on fluid lines and bags

Test point: All line clamps and bag connections
Expected: All clamps open, no visible leaks, bag hanging freely

4 more checks with pass and fail actions, 7 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Return pressure dropping patient safety

Return pressure 50 mmHg or 70 mmHg (when blood flow >200 ml/min) below operating point

Ranked causes

1. Return line or catheter leak or disconnection (common)
2. Patient moving or being repositioned (common)
3. Blood flowpath obstructed or leaking before deaeration chamber (occasional)
4. Hydrophobic membrane wet or service line disconnected (occasional)
5. Return pressure sensor failed (rare)
6. Blood leak detected in MARS monitor (rare)

First check

Verify return line and catheter connections

Test point: Return catheter to return line and patient connection points
Expected: Securely connected, no leakage

4 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Blood leak detected patient safety

Alarm triggered by blood leak detector sensing fluid in effluent line path

Ranked causes

1. Air bubble in effluent line (common)
2. Effluent line not properly installed in detector (common)
3. Liquid or debris in detector tubing (occasional)
4. Leak in filter membrane (occasional)
5. Formed elements or lipids in plasma (TPE) (rare)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calcium line not connected to syringe patient safety

Calcium infusion line not properly connected or wrong line type installed

Ranked causes

1. Calcium infusion line not connected to syringe (common)
2. Wrong line connected (common)
3. Unused syringe line from set connected (occasional)
4. Wrong syringe size installed (occasional)
5. Air in syringe (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Prime Self-Test Code 20 failure

Pump occlusivity test failed during prime

Ranked causes

1. Return line misaligned or obstructed (common)
2. Monitor line connection issue (occasional)
3. Pump segments misloaded or obstructed (occasional)
4. Pump failure (rare)
5. Pressure sensor or ARPS circuit failure (rare)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Prime Self-Test failure - Pressure Pod/Sensor patient safety

Post-prime repositioning of access, filter, or effluent pressure pods/sensors fails; alarm codes 1-7 depending on which pod(s) failed

Ranked causes

1. Pressure Pod/Sensor - Access failed (common)
2. Pressure Pod/Sensor - Filter failed (common)
3. Pressure Pod/Sensor - Effluent failed (common)
4. Pressure difference exceeds 20 mmHg for >5 sec during repositioning (occasional)
5. Repositioning timeout exceeded (>2 minutes) (occasional)

First check

Monitor access and ARPS pressure sensor values during repositioning

Test point: Pressure sensors
Expected: Within ±20 mmHg of each other, ±20 mmHg

Prime self-test failure codes 17-18 caution

Blood leak detector normalization timeout or threshold error during prime test

Ranked causes

1. Effluent line incorrectly installed in detector (common)
2. Air bubble in effluent line at detector level (occasional)
3. Set not fully primed (occasional)
4. Liquid or debris in tubing path through detector (occasional)
5. Blood leak detector hardware failure (rare)

First check

Verify effluent line installation

Test point: Blood leak detector inlet
Expected: Line inserted from bottom up through guides
Tools: Visual inspection

2 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Replacement pump rate incorrect

Replacement pump flow rate outside normal range

Ranked causes

1. Momentary pump roller or segment issue (occasional)
2. Pump raceway obstruction or loose rotor screw (occasional)
3. Pump hardware failure (rare)
4. Rotor thumb screw loosened (occasional)
5. Pump failure confirmed (rare)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

TMP access too high patient safety

Access transmembrane pressure has reached user-set pressure limit. High pressure alarm indicates restriction in plasmafiltration circuit.

Ranked causes

1. Inadequate anticoagulation of extracorporeal circuit (common)
2. Blood flow rate or plasmafiltration rate too high (occasional)
3. Kinked lines in blood flowpath (occasional)
4. Syringe pump failed or incorrectly installed (occasional)
5. Filter or effluent pressure sensor failed (rare)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Access pressure extremely negative patient safety

Alarm indicates access pressure more negative than warning limit or 150 mmHg below operating point; patient moving, coughing, suctioning, or access line issues

Ranked causes

1. Patient movement or coughing (common)
2. Access line clamped, kinked or partially blocked (common)
3. Access catheter clotted, out of position or blood flow too high (common)
4. Access pressure sensor failed (occasional)

First check

Inspect access line for clamps, kinks or blockages

Test point: Access line
Expected: Line unclamped, straight, unobstructed

1 more check with pass and fail actions, 4 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calcium Line Clamped patient safety

Calcium infusion line is clamped or obstructed, preventing calcium delivery during citrate-calcium treatment.

Ranked causes

1. Calcium line is clamped (common)
2. Central venous access on patient is clamped (common)
3. Central venous access obstructed by clots or catheter malposition (occasional)
4. Incorrect installation of syringe line (occasional)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Cannot Detect Return patient safety

Return line disconnection detection disabled when return pressure operating point is more negative than +10 mmHg. Machine unable to detect return line and catheter disconnections.

Ranked causes

1. Return line or catheter is disconnected (common)
2. Catheter size too large or blood flow too low (occasional)
3. Chamber monitor line not securely connected to return pressure port (occasional)
4. Return pressure sensor failed (rare)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Check Return patient safety

Return pressure exceeds operating point by ±50 mmHg (±70 mmHg if blood flow>200 ml/min); self-clears when condition resolves.

Ranked causes

1. Possible kink or obstruction in return line or catheter (common)
2. Patient is moving (occasional)
3. Catheter is clotted or out of position in vein (occasional)
4. Blood flow rate is too high (occasional)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Dialysate pump rate incorrect patient safety

Dialysate (green) pump delivery rate does not match set parameters

Ranked causes

1. Momentary problem with pump roller or segment (common)
2. Impeding object, clamped or kinked line (common)
3. Thumb screw in rotor center loosened (occasional)
4. Clamped line in pump path (common)

First check

Press CONTINUE to clear momentary pump issue

Test point: Alarm screen
Expected: Pump resumes normal rate; alarm clears

3 more checks with pass and fail actions, 4 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Download Interrupted

Download of history data to technical data card has failed during data transfer.

Ranked causes

1. Technical data card is full (common)
2. No technical data card present or card is damaged (common)
3. Internal malfunction related to technical data card holder/reader (operator level) (rare)
4. Internal malfunction related to technical data card holder/reader (service level) (rare)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Effluent bag tinged pink or red patient safety

Effluent collection bag shows pink or red discoloration

Ranked causes

1. Patient's disease state - removed free hemoglobin (occasional)
2. Effluent contains red blood cells below detection limit (occasional)
3. Hemolysis due to occlusion (common)
4. Hemolysis during TPE therapy (occasional)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Filter extremely positive pressure caution

Filter pod pressure exceeds safe limit

Ranked causes

1. Line clamped or kinked between filter pressure pod and filter or between filter and deaeration chamber (common)
2. Machine operating at high return pressure with filter clotting beginning (occasional)
3. Excessive pressure in return line (occasional)
4. Filter pressure sensor failed (rare)

First check

Inspect and unclamp lines if clamped or kinked

Test point: Filter pressure line path
Expected: Lines unclamped and straight

1 more check with pass and fail actions, 4 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

HP cartridge clotting patient safety

Hemofilter cartridge showing increasing pressure drop and clotting

Ranked causes

1. Inadequate anticoagulation of extracorporeal circuit (common)
2. Kinked lines in blood flowpath (occasional)
3. Syringe pump anticoagulation system failure (occasional)
4. Air leak in deaeration chamber monitor line (occasional)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Normalization Failed alarm patient safety

Blood leak detector normalization attempted 3 times and failed; may indicate filter blockage, defective line, air bubble, or detector failure

Ranked causes

1. Filter blood leak or effluent line issue (common)
2. Air bubble in effluent line (occasional)
3. Effluent line not correctly installed (occasional)
4. Blood leak detector failed (rare)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

PBP pump rate incorrect caution

Rate of pre-blood pump delivers incorrect flow rate

Ranked causes

1. Momentary pump roller or segment problem (occasional)
2. Impeding object, clamped or kinked line (common)
3. Rotor center thumbscrew loosened (occasional)
4. PBP pump hardware failure (rare)

First check

Verify pump operation

Test point: PBP pump in operation
Expected: Normal flow rate
Tools: Visual observation

1 more check with pass and fail actions, 4 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Prime Self-Test Code 27 failure

Pressure monitoring (TMPa) test failed

Ranked causes

1. Return line misplacement (common)
2. Pressure pod missing or sensor debris (occasional)
3. Set not fully primed (common)
4. Pressure sensor or ARPS failure (rare)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Prime self-test failure code 16 caution

Return pressure sensor test failed during prime sequence

Ranked causes

1. Clamped lines in set (occasional)
2. Chamber monitor line not securely connected (common)
3. Air in set or bad priming quality (occasional)
4. Return pressure sensor hardware failure (rare)

First check

Verify lines unclamped

Test point: Set tubing
Expected: All lines open and flowing
Tools: Visual inspection

1 more check with pass and fail actions, 4 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Return disconnection detected patient safety

Return line or catheter disconnected; return pressure lower than +10 mmHg when operating point is higher

Ranked causes

1. Return line or catheter disconnected (common)
2. Chamber monitor line not properly connected or fluid barrier wet (occasional)
3. Blood flowpath obstructed before deaeration chamber (occasional)
4. Return pressure sensor failed (rare)

First check

Verify return line and catheter connection

Test point: Return line connections
Expected: Catheter securely connected to both return line and patient

2 more checks with pass and fail actions, 4 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Scale zero test failed caution

One or more scales failed the zero calibration test

Ranked causes

1. Unexpected presence of bag on scale (common)
2. Carrying bar missing from scale (occasional)
3. Foreign objects on or touching scales (common)
4. Scale hardware failure (occasional)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

TMP Excessive patient safety

Access transmembrane pressure or filter transmembrane pressure exceeds safe limit

Ranked causes

1. Effluent rate too high (common)
2. Plasmafilter pressure drop increasing; insufficient anticoagulation (occasional)
3. Ultrafiltration rate (UFR) too high; wrong pressure measurement; inadequate anticoagulation (common)
4. During CRRT MARS: MARSFLUX and diaFLUX combined pressure exceeds limit (occasional)

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

24 V power supply relay failure or return clamp sensor malfunction patient safety

24 V relay fails to disable or re-enable; return clamp does not close/open on command; or clamp position sensor does not detect movement

Ranked causes

1. 24 V power relay failure or stuck contacts (occasional)
2. Return clamp solenoid or motor drive circuit failure (occasional)
3. Return clamp position sensor failure or misalignment (occasional)

First check

Command return clamp to close and verify closed state

Test point: Return clamp position sensor output
Expected: Clamp closed on command

3 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Access pressure extremely positive patient safety

Alarm indicates access pressure more positive than warning limit; external device delivering high pressure or blood flow rate set too low

Ranked causes

1. External device delivering blood at high pressure (common)
2. Blood flow rate set too low for external device pressure (common)
3. Access pressure sensor failed (occasional)

First check

Verify external device pressure setting

Test point: External device controls
Expected: Device pressure within specification for current blood flow

1 more check with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Air bubble detector or pump control failure during simulated air bubble test patient safety

During air bubble security test, control system fails to activate safe state (stop all pumps and close return clamp) or pump stop command does not execute when air bubble is simulated

Ranked causes

1. ABD transmitter power insufficient to simulate air bubble condition (occasional)
2. Blood pump stop command circuit failure (occasional)
3. Control system software or CCA module malfunction (occasional)

First check

Simulate air bubble and verify alarm signal activation

Test point: ABD receiver output; air in blood alarm signal
Expected: ABD alarm signal activated when transmitter reduced

5 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Air in blood line patient safety

Alarm indicates air or foam detected in blood tubing or return line; patient disconnected, set not fully primed, or air trapped in deaeration chamber

Ranked causes

1. Disconnected line or leaking connection (common)
2. Set not fully primed (common)
3. Air or foam in tubing (occasional)

First check

Visually inspect all blood line connections

Test point: Patient access, return line, set connections
Expected: All connections firmly seated and dry

1 more check with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

ARPS pump power relay failure or pump malfunction patient safety

12 V relay powering Automatic Repositioning System motor disabled or ARPS pump fails to start/stop; no pressure change detected during pump operation

Ranked causes

1. 12 V relay failure or open circuit (occasional)
2. ARPS pump mechanical failure or blockage (occasional)
3. ARPS tubing leak or pressure sensor malfunction (common)

First check

Verify 12 V relay disable function

Test point: 12 V relay control signal
Expected: Relay disables on command

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Bag volume incorrect patient safety

Variable Empty Bag method active; fluid amount in bag does not match Allowed Volume setting; alarm triggers

Ranked causes

1. Loaded solution bag volume does not match Allowed Volume setting (common)
2. No bag on scale or foreign object present (occasional)
3. Bag partially supported or not hanging freely (occasional)

First check

Verify bag volume matches Allowed Volume

Test point: Solution bag and scale weight reading
Expected: Bag volume matches or exceeds Allowed Volume

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Blood pump rate incorrect patient safety

Blood pump delivery rate does not match set parameters during operation

Ranked causes

1. Momentary problem with pump roller or segment (common)
2. Impeding object, clamped or kinked line in pump raceway (common)
3. Thumb screw in rotor center has loosened (occasional)

First check

Press CONTINUE to clear momentary pump issue

Test point: Alarm screen
Expected: Alarm clears and pump resumes normal rate

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Communication error

Internal communication link error between protective task, protective slave, or control system modules

Ranked causes

1. Software download error or I2C bus issue (occasional)
2. Component connection failure or voltage loss (occasional)
3. Component hardware failure (rare)

First check

Power cycle and restart machine

Test point: Power switch and startup sequence
Expected: Machine restarts without communication error

3 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Effluent bag incorrect patient safety

Effluent bag volume capacity does not match Allowed Volume setting; e.g. 5000 ml bag hung when 9000 ml expected

Ranked causes

1. Wrong effluent bag size hung on scale versus Allowed Volume (common)
2. No bag on scale (occasional)
3. Effluent bag partially supported or not hanging freely (occasional)

First check

Verify effluent bag size matches Allowed Volume

Test point: Effluent bag capacity, Allowed Volume setting
Expected: Bag capacity matches Allowed Volume

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Effluent bag volume mismatch patient safety

Bag size on scale does not match configured allowed volume during priming

Ranked causes

1. Bag size smaller than allowed volume setting (common)
2. No bag on scale (common)
3. Effluent bag partially supported (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Effluent line not in blood leak detector patient safety

Effluent line of new set not properly seated in blood leak detector during priming

Ranked causes

1. Effluent line not installed in detector (common)
2. Blood leak detector failed (occasional)
3. Line in detector not empty (rare)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Effluent pump rate incorrect patient safety

Effluent (yellow) pump delivery rate does not match set parameters

Ranked causes

1. Momentary problem with pump roller or segment (common)
2. Impeding object, clamped or kinked line (common)
3. Thumb screw in rotor center loosened (occasional)

First check

Press CONTINUE to clear momentary pump issue

Test point: Alarm screen
Expected: Pump resumes normal rate; alarm clears

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Lines clamped or occluded patient safety

One or more fluid lines blocked, restricting flow and causing pressure alarm

Ranked causes

1. One of the lines is clamped (common)
2. Occluded disposable set (common)
3. One or more pressure sensors failed (occasional)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Lines crossed or tangled patient safety

Patient lines or bag lines are improperly routed, causing blockage or scale misreading

Ranked causes

1. Lines are crossed or tangled (common)
2. Foreign object on scale (occasional)
3. One or more scales failed (occasional)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Plasmafilter clotted patient safety

Filter pressure drop exceeds limit for plasmafilter; clots formed or excessive TMP reached

Ranked causes

1. Inadequate anticoagulation of blood flowpath (common)
2. Clamped lines in blood flowpath (occasional)
3. Ultrafiltration rate too high for filter (occasional)

First check

Inspect blood flowpath for clamped lines

Test point: Entire blood flowpath
Expected: All lines unclamped

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pressure pod repositioning failure or sensor verification out of range patient safety

Effluent, Access, or Filter pressure pods fail to reposition; sensor verification shows pressure outside ±20 mmHg tolerance during repositioning sequence; repositioning sequence takes too long (>5 seconds deviation) or falls outside final tolerance after completion

Ranked causes

1. ARPS pump unable to achieve target pressure for pod repositioning (occasional)
2. Pressure sensor offset or calibration drift (common)
3. Pod membrane rupture or air leak in pressure line (occasional)

First check

Measure initial Effluent pressure and store value

Test point: Effluent pressure sensor
Expected: Pressure value recorded within normal operating range

12 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Prime self-test failure (codes 1-7) caution

Prime self-test failed due to pressure pod or sensor issues affecting Access, Filter, or Effluent

Ranked causes

1. Pressure pod not installed (common)
2. Clamped lines in set (occasional)
3. Pressure sensor hardware failure (rare)

First check

Verify pod installation

Test point: Access/Filter/Effluent sensor pods
Expected: All pods correctly installed
Tools: Visual inspection

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pump occlusion test failure or external leakage in disposable set patient safety

Peristaltic pump rollers cannot completely occlude tubing within pump raceway, or excessive pressure drop indicates leak in disposable set; number of rotations exceeds limit or pressure drop exceeds allowed tolerance

Ranked causes

1. Disposable set damaged, kinked, or improperly seated in pump raceway (common)
2. Peristaltic pump roller wear or mechanical failure (occasional)
3. Pressure sensor calibration drift or sensor malfunction (occasional)

First check

Verify blood pump can build return pressure to set-dependent threshold

Test point: Return pressure sensor; blood pump encoder rotation count
Expected: Pressure reaches target without exceeding maximum rotation count for selected set

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Replacement Container Empty patient safety

Replacement solution container is empty, partially supported, or has fallen

Ranked causes

1. Replacement container empty (common)
2. Replacement container partially supported (occasional)
3. Replacement container has fallen (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Replacement pump 2 rate incorrect patient safety

Rate of replacement pump 2 (green) pump is not at the correct setting

Ranked causes

1. Momentary pump roller or segment issue (occasional)
2. Impeding object or line obstruction in pump (common)
3. Pump failure (rare)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Return pressure sensor out of range or ARPS-to-return pressure mismatch patient safety

Return pressure below 250 mmHg after occlusion test, or return and ARPS pressure sensors differ by more than 20 mmHg after ARPS pump equalization

Ranked causes

1. Return pressure sensor reading low or misaligned (occasional)
2. ARPS pump unable to reach target pressure or has regulator leak (occasional)
3. ARPS return valve stuck or leaking (occasional)

First check

Verify return pressure above minimum threshold after occlusion test

Test point: Return pressure sensor
Expected: Greater than 250 mmHg, >250

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Self-test overdue caution

Periodic self-test failed to complete within last 150 minutes of treatment

Ranked causes

1. Self-test interrupted by secondary alarms (common)
2. Self-test interrupted by operator interventions (common)
3. Self-test repeatedly overridden by operator (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Syringe line clamped

Syringe line blocked by clamp, kink, or obstruction; anticoagulant flow interrupted

Ranked causes

1. Syringe line clamped, kinked, or obstructed (common)
2. Incorrect installation of syringe line (occasional)
3. Alarm is recurring (occasional)

First check

Inspect syringe line for clamps and kinks

Test point: Syringe line full length
Expected: No clamps, kinks, or obstructions visible

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

24V and Return Clamp Test failure patient safety

Periodic self-test failure; 24V relay, +24V supply, or return clamp sensor malfunction; alarm codes 24, 25, or 26

Ranked causes

1. 24V relay malfunction or +24V supply lost (occasional)
2. Return clamp sensor malfunction or did not detect position change (occasional)

First check

Close return clamp

Test point: Return clamp control
Expected: Clamp closed

3 more checks with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

Air detector malfunction patient safety

Air bubble detector failed self-tests or return line not installed/improperly installed. System detects air detector circuit issue.

Ranked causes

1. Air bubble detector failed self-tests (rare)
2. Return line not installed or improperly installed in air bubble detector (occasional)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Bag empty

Indicated solution or effluent bag is empty; alarm alerts operator to change bag; system prevents flow

Ranked causes

1. Bag volume depleted during treatment (common)
2. Bag partially supported or has fallen (occasional)

First check

Verify bag is empty per weight on scale

Test point: Scale reading for indicated bag
Expected: Weight at or below tare weight

1 more check with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery depleted during power loss patient safety

Main power is lost and backup battery has no energy; machine cannot operate

Ranked causes

1. Main power lost and battery exhausted (occasional)
2. Machine unplugged with battery discharged (occasional)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery Exhausted caution

Back-up battery power level too low; machine needs charging to restore battery capacity

Ranked causes

1. Back-up battery depleted (common)
2. Old battery or broken internal wiring (rare)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Blood leak detected in MARS treatment patient safety

MARS monitor detected blood leak during CRRT MARS treatment

Ranked causes

1. Actual blood leak in circuit (occasional)
2. MARS monitor false alarm (occasional)

First check

Confirm blood leak presence

Test point: Circuit visual inspection
Expected: Blood leak confirmed or not confirmed

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

More symptoms

Blood leak detector failed
Blood leak detector normalization timeout or out-of-range values
Blood leak detector threshold detection failure
Blood leakage from pressure pod diaphragm
Blood pump failed
Calcium infusion line clamped
Calcium syringe not loaded
Cannot save custom data
Dialysate pump failed
Dialysate scale sensor failed
Display blank or logo screen stuck
Effluent bag full
Effluent bag full during priming
Effluent pump noise or poor function
Effluent Scale Sensor alarm during priming
HP cartridge clotted
Line in Air Detector alarm
Line in Clamp alarm
Line presence sensor malfunction in ABD or return clamp
Lower Pinch Valve alarm
Memory backup battery depleted
No Line in Air Detector alarm
No Line in Clamp alarm
PBP scale sensor failed
Pressure zero test failed
Prime Self-Test Code 19 failure
Prime Self-Test Code 21-23 failure
Prime Self-Test Code 25 failure
Replacement scale sensor failure
Return extremely positive pressure
Return line clamp stuck closed
Return pressure sensor malfunction or miscalibration
Return pressure too high
Scale Open
Scale open alarm during priming
Syringe empty
Syringe not loaded
Syringe pump malfunction
Unsuitable calcium solution
Upper pinch valve malfunction
Voltage out of range
Air bubble not detected or false macro-bubble detection
Alarm indicator light not illuminating or incorrect color/pattern
Alarm tone not sounding or incorrect tone volume/pattern
Anticoagulation Check Points
Anticoagulation delivery failed - syringe pump
Anticoagulation suspended
ARPS repositioning valve not opening or pump not tracking pressure
Auto blood return malfunction
Bar code reading failure
Battery alarm recurring
Blood Flow Stopped
Blood leak detector malfunction
Blood Leak Detector Test failure
Blood pump brake not engaging or disengaging
Blood pump relay not responding
Ca Syringe Almost Empty
Ca Syringe Not Loaded
Calcium syringe empty
Calibration: Air Detector
Calibration: Clock and Date
Calibration: Display
Calibration: External Communication Interface
Calibration: Filter Clotting Limits
Calibration: Pitch and Volume
Calibration: Pressure Sensors
Calibration: Preventive Maintenance
Calibration: Scales
Calibration: Screen Brightness
Calibration: Syringe Pump
Change of syringe clip
Checksum interrupted
Citrate delivery failed - PBP pump
Custom data access error
Display goes blank momentarily then reappears
Display goes blank with buzzer
Display image floats around
Effluent pump failed
Filter measurement failure
Fluid pumps stopped
Functional Test: Expected Warning Alarms During Water-Based Test
Gain Limit Reached
General System Failure
General System Failure Code 1
General System Failure Code 2
General System Failure Code 3
General System Failure Code 4
General System Failure Code 5
General System Failure Code 6
Incomplete bolus
Installation test
Leakage from set connections
Library Data error
Loader already in loaded position
Loading error - pinch valves
Loss Limit Reached
Main power lost
MARS treatment not started
Memory Error Code 1
Memory Error Code 3
Memory Error Code 4
Memory Error Code 5
Memory Error Code 6
Memory Error Code 7
Patient Fluid Gain Excessive
Power failure recovery
Pressure sensor reading outside accepted range
Pressures circuit board hardware failure
Prime Self-Test Code 24 failure
Prime Self-Test Code 26 failure
Prime Self-Test Code 28 failure
Pump does not respond to 24 VDC control
Pump fails to start or stalls at high speed
Pump speed does not match set value
Recirculation time exceeded
Return Pressure Sensor Test failure
Scale circuit board hardware failure
Scale failed
Scale out of calibration
Scale out of tolerance error during calibration
Scale reading outside accepted range
Set-up error alarm during pre-prime self-test
Softkeys non-responsive
Software update
Syringe almost empty
Syringe pump ADC value out of tolerance
Syringe pump force or position measurement out of range
Time to change set
TMPa Calibration failure
Total Plasma Exchange (TPE) Prescription Delivered
Unresolved Flow Problems
Wrong set loaded

132 more symptoms with ranked causes and checks are in ServiceForge. Connect ServiceForge to your AI

Error codes

Code	Meaning	Trigger	Severity
`1`	Blood pump unexpected movement during Safe state	Blood pump motion detected when machine in Safe state	error
`102`	Filter is Clotting	Filter pressure rise detected above threshold	warning
`105`	TMP Too High	Transmembrane pressure exceeds user limit	warning
`114`	Battery Exhausted	System battery voltage falls below safe operating level	error
`115`	Main Power Lost	AC mains supply interrupted	error
`18`	Prime Self Test malfunction	Detected during blood leak detector test with empty tube in holder	error
`19`	Air/pumps security test failure	Air bubble or pump test malfunction during prime	error
`2`	Fluid pump unexpected movement during Safe state	Fluid pump motion detected when machine in Safe state	error
`20`	Pump occlusivity test failure	Return line obstruction or pump pressure anomaly	error
`21-23`	Pinch valve failure	Pinch valve actuator malfunction during prime	error
`24`	24V/12V power supply test failure	Voltage regulation or ARPS circuit malfunction	error
`25`	Return clamp sensor failure	Return clamp sensor malfunction or obstruction	error
`26`	24V and return clamp sensor failure	Simultaneous voltage and clamp sensor failures	critical
`27`	Pressure monitoring (TMPa) failure	Pressure sensor or monitoring system malfunction	error
`28`	Syringe pump hardware test failure	Syringe pump test not completed within 600 seconds	error
`3`	Return clamp not properly closed	Return clamp position check fails during initialization	error
`4`	Hall sensor mismatch in Protective Slave	Criteria_Counter vs Criteria_Exhausted values mismatched	error
`5`	I2C communication error during startup	I2C bus communication fails during initialization	error
`6`	Syringe pump unexpected movement	Syringe pump motion detected during Safe state	error
`90`	Check Access	Access line pressure or condition detected as abnormal	warning
`91`	Check Return	Return line pressure detected as abnormal	warning
`92`	Blood Flow Stopped	Blood pump or circuit flow has ceased	error
`93`	Syringe not loaded / Ca Syringe Not Loaded	Syringe detection mechanism indicates syringe missing	warning
`96`	Syringe Empty	Syringe volume sensor detects empty condition	warning
`Air Detector`	Air bubble detector failed self-tests or line improperly installed	Detector self-test fails or return line not detected in position	error
`Air in Blood`	Air bubbles detected in return line	Air bubbles present in patient blood return line	warning
`Auto Blood Return`	Blood return volume incongruence detected	Discrepancy in auto blood return during treatment	warning
`Battery Low`	Battery power is low	Battery charge level drops below operating threshold	warning
`Blood Leak Detector`	Effluent line not installed in detector or detector failed self-tests	Effluent line missing/improperly installed or detector circuit failure	warning
`Blood leak detector failed`	Blood leak detector malfunction detected; unable to continue treatment safely	Blood leak detector hardware fails or cannot communicate with system	error
`Blood Pump – Rate incorrect`	Blood pump not delivering correct flow rate during treatment	Pump output does not match programmed rate; flowmeter detects deviation	warning
`Cannot Save Custom Data`	System unable to store customized therapy parameter settings	Write error to Compact Flash Card during custom mode save operation	warning
`Ca Syringe Not Loaded`	Calcium syringe not detected in loading mechanism at start of priming	Syringe detection sensor does not register loaded syringe during pre-treatment checks	error
`Checksum Interrupted`	Internal firmware checksum update was interrupted; system state and settings may be corrupted	Power loss or system reset occurs during checksum verification or update process	warning
`Clamp Stuck Closed – Return line`	Return line clamp cannot open; patient blood cannot be returned	Clamp motor stalled or mechanical jam prevents opening during treatment transition	critical
`Communication Error – Code 2`	No communication with protective task microcontroller	Protective task processor not responding to status queries from main control system	critical
`Communication Error – Code 3`	Communication link error on protective slave module	Protective slave processor detects parity/CRC error or timeout in data link	critical
`Communication Error – Code 4`	Communication link error on control system processor	Main control processor detects data link error with peripheral modules	critical
`Communication Error – Code 5`	Missing status command response from protective slave	Protective slave does not respond to periodic status query from main controller	critical
`Communication Error – Code 6`	Missing alarm command response from protective slave	Protective slave cannot send alarm status back to main controller	critical
`Communication Error – Code 7`	Protective task unable to send message to slave module	Master processor cannot deliver commands to protective slave over I2C bus	critical
`Custom Data – Access error`	System unable to access stored custom therapy values for selected configuration	Flash card read error when loading custom mode data; data file missing or corrupted	error
`Dialysate Pump – Pump failed`	Dialysate pump unable to operate; hardware failure detected	Pump function diagnostic fails; pump unable to achieve minimum dialysate output	critical
`Dialysate Pump – Rate incorrect`	Dialysate (green) pump not delivering correct flow rate	Pump output does not match programmed dialysate flow rate; flowmeter detects deviation	warning
`Dialysate Scale Sensor – Failed`	Scale position sensor unable to detect dialysate bag tray open/closed state during priming	Sensor does not register scale tray position change; unable to verify bag attachment	error
`Effluent Pump – Pump failed`	Effluent pump unable to operate; hardware failure detected	Pump function diagnostic fails; pump unable to achieve minimum effluent output	critical
`Effluent Pump – Rate incorrect`	Effluent (yellow) pump not delivering correct drain flow rate	Pump output does not match programmed effluent flow rate; flowmeter detects deviation	warning
`General System Failure`	Patient safety cannot be monitored due to system failure	Failure during self-tests, software errors, or hardware failure	critical
`MALFUNCTION: No Line in Air Detector`	Line presence sensor in Air Bubble Detector failed or line not loaded	Micro switch in ABD does not detect line after set loading during post-prime	error
`MALFUNCTION: No Line in Clamp`	Line presence sensor in return line clamp failed or line not loaded	Micro switch in return line clamp does not detect line after set loading during post-prime	error
`MALFUNCTION:Prime Self-Test Code: 1`	Prime Self-Test failed due to Access pressure pod/sensor	Access pod repositioning failed during post-prime	error
`MALFUNCTION: Prime Self-Test Code 16`	Return pressure sensor out of range or ARPS-return pressure mismatch exceeds tolerance	Return pressure below 250 mmHg after occlusion; or ARPS and return pressure differ >±20 mmHg after equalization	error
`MALFUNCTION: Prime Self-Test Code 17`	Blood Leak Detector normalization timeout or normalization value out of range	BLD normalization does not complete within 30 seconds or receiver/transmitter PWM values outside spec	error
`MALFUNCTION: Prime Self-Test Code 18`	Blood Leak Detector threshold detection failure during leak simulation test	BLD receiver value does not drop below 15000 within 5 seconds when transmitter PWM lowered to simulate leak	error
`MALFUNCTION: Prime Self-Test Code 19`	Air/Pump security test failure during simulated air bubble condition	Blood pump fails to stop on air bubble alarm or fluid pumps fail to respond to start/stop commands	critical
`MALFUNCTION:Prime Self-Test Code: 2`	Prime Self-Test failed due to Filter pressure pod/sensor	Filter pod repositioning failed during post-prime	error
`MALFUNCTION: Prime Self-Test Code 20`	Pump occlusion test failure or external leakage in disposable set	Blood pump unable to reach target return pressure in allowed rotations; excessive pressure drop after 10 seconds	error
`MALFUNCTION: Prime Self-Test Code 24`	12 V or 24 V power relay failure or ARPS pump malfunction	12 V relay fails to disable/enable or ARPS pump does not respond; OR 24 V relay fails to disable/enable	error
`MALFUNCTION: Prime Self-Test Code 25`	Return clamp position sensor failure or malfunction	Return clamp does not move on command or position sensor does not detect open/close state	error
`MALFUNCTION: Prime Self-Test Code 26`	24 V power and return clamp sensor combined failure	24 V relay malfunction AND return clamp position sensor failure detected together	critical
`MALFUNCTION:Prime Self-Test Code: 27`	TMPa calibration failed	Pressure sensor characteristics out of 20 percent tolerance during TPE calibration	error
`MALFUNCTION:Prime Self-Test Code: 3`	Prime Self-Test failed due to Access and Filter pods/sensors	Both access and filter pod repositioning failed during post-prime	error
`MALFUNCTION:Prime Self-Test Code: 4`	Prime Self-Test failed due to Effluent pressure pod/sensor	Effluent pod repositioning failed during post-prime	error
`MALFUNCTION:Prime Self-Test Code: 5`	Prime Self-Test failed due to Access and Effluent pods/sensors	Both access and effluent pod repositioning failed during post-prime	error
`MALFUNCTION:Prime Self-Test Code: 6`	Prime Self-Test failed due to Filter and Effluent pods/sensors	Both filter and effluent pod repositioning failed during post-prime	error
`MALFUNCTION:Prime Self-Test Code: 7`	Prime Self-Test failed due to Access, Filter, and Effluent pods/sensors	All three pod repositioning failed during post-prime	critical
`MALFUNCTION:Self-Test Failure Code: 16`	Return pressure sensor failure	Return and ARPS pressure readings differ by more than ±20 mmHg	error
`MALFUNCTION:Self-Test Failure Code: 18`	Blood leak detector threshold error	BLD receiver value does not fall below 15000 within 5 seconds of transmitter PWM reduction	error
`MALFUNCTION:Self-Test Failure Code: 24`	24V / 12V supply failure	+24V relay malfunction or supply does not restore after being disabled	error
`MALFUNCTION:Self-Test Failure Code: 25`	Return clamp sensor failure	Return clamp position sensor does not detect open or closed position correctly	error
`MALFUNCTION:Self-Test Failure Code: 26`	24V and Return clamp sensor failure	Both +24V relay and return clamp position sensor failures detected	critical
`Memory Error 1`	Memory error on Protective task	Protective task memory corruption detected	critical
`Memory Error 3`	Wrong CRC of a set value	Checksum validation fails for set value	critical
`Memory Error 4`	Set value incongruence between Protective slave and task	Protective and control task parameters don't match	critical
`Memory Error 5`	Incongruence on alarm structure of control system	Alarm structure validation fails at startup	critical
`Memory Error 6`	Set value incongruence between protective and control	Parameter mismatch between protective and control systems	critical
`Memory Error 7`	Backup memory failure	Backup memory read/write error	critical
`Power Failure`	Mains or backup power lost to control unit	Loss of electrical power to Prismaflex control unit	critical
`Pump failed – Blood`	Blood pump unable to operate; hardware failure detected	Pump function diagnostic fails; pump unable to achieve minimum output	critical
`Syringe Empty`	Syringe pump is in end-of-travel position indicating empty syringe	Syringe depleted during treatment or not loaded	warning
`Syringe Line Clamped`	Syringe delivery line is obstructed or kinked	Line clamped, kinked, or obstructed during treatment	warning
`Syringe Not Loaded`	Syringe not loaded after syringe test performed	Syringe test fails to detect loaded syringe; missing or loose installation	error
`Time to Change Set`	Hours of use have reached operator-set time limit for therapy/set	Operating time exceeds set limit for therapy/set combination	info
`TMP Access Too High`	Access transmembrane pressure exceeded user-set limit	Pressure in plasmafiltration circuit exceeds threshold	error
`TMP Too High`	Main filter transmembrane pressure exceeded user-set limit	Pressure in filter circuit exceeds threshold during CRRT	error

Likely causes and actions for each code are in ServiceForge. Connect ServiceForge to your AI

Community

0 fixes logged by technicians through their AI, with outcomes, for this model.

ServiceForge knowledge base record. Field-unverified unless technicians confirmed it. A teaching summary of the record, not a service manual. Export 2026-10-14.