Dialysis systems · Prismax family

Vantive Prismax 2025: troubleshooting and error codes

The ServiceForge knowledge base holds 38 documented symptoms for the Vantive Prismax 2025, with 52 ranked causes, 47 diagnostic checks with test points and expected values, and 20 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Therapy Recovery not available patient safety

Therapy Recovery feature becomes unavailable after system reboot or restart when certain fault conditions exist

Ranked causes

1. POSTs did not complete successfully (unknown)
2. More than 10 minutes elapsed without blood pump turning (unknown)
3. System could not save or restore required data (unknown)
4. System failure occurred when not actively delivering treatment (unknown)
5. Previous system failure occurs again (unknown)

First check

Verify POSTs complete successfully

Test point: POST completion status
Expected: All POSTs complete without error

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

Touch screen unresponsive or locked up

GUI stuck, user input not received, clock and animation working in background, events and alarms still recording

Ranked causes

1. Main Board revision A or B with USB issue (common)
2. Display Assembly failure or malfunction (occasional)
3. Loose or damaged Touchscreen or Barcode Reader connectors (occasional)

First check

Verify Main Board revision

Test point: Main Board label or Service history record
Expected: Revision C or higher

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

B1404 Backup Speaker current out of range

Alarm B1404 triggers during POST or BIOT when backup speaker current measurement falls outside acceptable range

Ranked causes

1. Backup Speaker current out of normal range when OFF (unknown)
2. Backup Speaker current out of normal range when ON (unknown)

First check

Measure Backup Speaker current when speaker is OFF

Test point: I_BK_SPKR
Expected: -0.015A <= I_BK_SPKR <= 0.02A, -0.015A to 0.02A

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

B1404 POST alarm after Therapy Recovery failure patient safety

Backup Speaker failure during Power-On Self-Test (POST) triggers B1404 alarm after therapy recovery event

Ranked causes

1. Backup Speaker component failure (occasional)
2. System Failure requiring Therapy Recovery (unknown)

First check

Investigate and fix/mitigate System Failure

Test point: System logs and event history
Expected: Therapy Recovery event resolved

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

Calibration: Weights Kit

Verify calibration of PrisMax Calibration Weight Kit (G5000103) composed of 4 steel mass standards before use

Ranked causes

1. Calibration weights out of specification or damaged (occasional)
2. Weights require external recalibration (rare)

First check

Weigh combined parts A+B

Test point: Calibration weight assembly
Expected: 5200.0 g, 0.0 to 2.0 g

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

CRC values do not match expected

BootCRC or AppCRC values shown in Software Update Service Mode do not match the expected values for the installed scale part numbers

Ranked causes

1. Loose or improperly seated scale cabling (common)
2. Defective scale (occasional)

First check

Verify scale cabling connections

Test point: Scale connector and cable seating
Expected: Connectors fully seated and secure

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

Display unresponsive to touch patient safety

PrisMax display becomes unresponsive to user touch; in worst case user must shut down device and interrupt treatment

Ranked causes

1. Software error (GUI stopped operating) (unknown)
2. Touchscreen lock-up (unknown)

First check

Observe if clock is moving and filter animation is running

Test point: Display
Expected: Clock moves and filter animation runs normally

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

Remote Viewing, EMR output, or Remote Alarm not working

Remote features and alarm notifications fail to function

Ranked causes

1. Main Board F5 fuse blown affecting serial communication and remote functions (common)
2. Defective Isolation Board DC/DC converter with data code 2009 (common)

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

Therapy Recovery system failure patient safety

System initiates recovery mode due to underlying failure such as Scales Mismatch or Software Exception

Ranked causes

1. Scales Mismatch (unknown)
2. Software Exception (unknown)

TherMax does not communicate with PrisMax patient safety

Alarm T2255 displayed during therapy setup; treatment will not start due to communication failure

Ranked causes

1. Defective Isolation Board DC/DC converter with data code 2009 (common)
2. Main Board F5 fuse blown affecting serial communication (common)

First check

Check Isolation Board DC/DC converter data code

Test point: DC/DC converter
Expected: Data code other than 2009

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

ARPS pump segment reliability issues

Silicone tube segment in ARPS pump requires replacement to prevent self-test failures and service interruptions

Ranked causes

1. Previous ARPS pump segment material lacking crosslinking durability (common)

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

ARPS Self-Test Fail alarm

Alarm B1215 triggered during Auto Re-Positioning System pump operation or self-test

Ranked causes

1. ARPS pump segment reliability issue (common)

First check

Verify ARPS pump segment installation in Auto Re-Positioning System

Test point: ARPS Pump
Expected: New gamma irradiated segment installed

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

ARPS Self-Test Fail alarm B1215

Alarm B1215 is triggered during Auto Re-Positioning System Self-Test procedure, indicating ARPS pump segment reliability issue

Ranked causes

1. ARPS pump segment degradation or failure (common)

First check

Verify ARPS Self-Test passes after segment replacement

Test point: ARPS Self-Test function
Expected: Self-test completes without Alarm B1215

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

B1404 alarm after therapy recovery patient safety

Alarm sounds and system reboots after unexpected shutdown during treatment; main speaker turns off, backup speaker turns on, screen goes blank for ~50 seconds

Ranked causes

1. System failure during treatment session (unknown)

First check

Verify system detects failure and initiates recovery

Test point: Main speaker and backup speaker
Expected: Alarm sounds, main speaker turns OFF, backup speaker turns ON, screen blank for ~50 seconds

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

B1404 alarm triggered after Therapy Recovery patient safety

Current of Backup Speaker out of range alarm declared erroneously after Therapy Recovery, preventing treatment continuation

Ranked causes

1. Backup Speaker ON with current greater than 0.02A during Therapy Recovery (common)

First check

Run Power Board System-Self Tests (SSTs)

Test point: Power Board SST, page 6 of 10
Expected: CP Speaker Current Active reading

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

B1404 Power-On Self-Test failure detected patient safety

Power-on self-test reports B1404 alarm with measured current exceeding upper limit threshold

Ranked causes

1. Measured Backup Speaker current 3.0A exceeds UL 2.0A during POST (rare)

First check

Review power-on self-test log for Backup Speaker current during POST

Test point: POST log, test_adc.cc line 111
Expected: Current between 0.000 and 2.000 A, UL=2.000000

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

Battery pack capacity below threshold

Full Battery Capacity value measured during SST test is less than 2500 mAh, indicating battery degradation

Ranked causes

1. Battery pack aged or degraded (common)

First check

Access Power Board SST page for battery capacity test

Test point: Service Mode, Power Board, Page 8 of 10
Expected: Backup Battery Capacity test available

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

Battery pack capacity test fails

Power Board Self-System Test Dialog Box reports measured capacity lower than 2500mAh during preventive maintenance check

Ranked causes

1. Battery pack capacity degraded below threshold (occasional)

First check

Run Power Board Self-System Test to measure battery capacity

Test point: Power Board Self-System Test Dialog Box
Expected: 2500mAh or greater

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

Battery Pack maintenance interval

Service interval extension based on capacity test results instead of fixed 2-year or 12,000-hour schedule

Ranked causes

1. Battery Pack still within acceptable capacity range (unknown)

First check

Review Full Battery Capacity value from Battery Pack Capacity Test (SI8041)

Test point: SI8041 Dialog Box
Expected: Full Battery Capacity parameter value

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

Black screen or device reboot

Screen goes black and system reboots

Ranked causes

1. BIOT alarm triggered (unknown)

Calibration weights fail inspection

Weights show visible damage, rust, cracks or mismatched serial numbers

Ranked causes

1. Weights damaged or corroded (occasional)

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

GUI stuck with clock not moving

Screen frozen, clock animation not advancing

Ranked causes

1. Software error (unknown)

Isolation Board DC/DC converter current spike on power-on or power-off high voltage

Unexpected current spike during device power-on or power-off from counterfeit DC/DC converter component, potentially exceeding Main Board fuse F5 maximum rating

Ranked causes

1. Counterfeit DC/DC converter installed on Isolation Board (occasional)

First check

Monitor current draw during power-on and power-off cycles

Test point: Main Board fuse F5 supply
Expected: Current within maximum rating of fuse F5

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

Isolation Board LED 8 (WiFi Power On) is off

Red LED 8 on Isolation Board does not illuminate, indicating WiFi power not functioning.

Ranked causes

1. Main Board fuse F5 blown (unknown)

First check

Measure continuity of Main Board fuse F5

Test point: Fuse F5
Expected: Continuity present

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

Isolation Board with data code 2009 installed

Defective lot of Isolation Board with DC/DC converter data code 2009 present in unit, potentially affecting Main Board fuse F5

Ranked causes

1. Counterfeit component in DC/DC converter (data code 2009) (common)

First check

Verify Main Board fuse F5 status and LED 8 operation

Test point: Fuse F5, LED 8
Expected: Fuse F5 intact, LED 8 on

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

Isolation Board with DC/DC Converter data code 2009 defective

Defective lots of Isolation Board with data code 2009 identified; Main Board fuse F5 may be blown; LED 8 may be off

Ranked causes

1. Counterfeit component in defective Isolation Board lot (data code 2009) (common)

First check

Check data code on Isolation Board with DC/DC Converter

Test point: Isolation Board label
Expected: Data code NOT 2009

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

Main Board fuse F5 blown

Fuse F5 on the Main Board is open/blown, indicating potential board failure or counterfeit component issue

Ranked causes

1. Defective Isolation Board with counterfeit DC/DC converter component (data code 2009) (common)

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

Remote Viewing, EMR output, or Remote Alarm do not work

Remote functions fail to operate.

Ranked causes

1. Main Board fuse F5 blown (unknown)

First check

Measure continuity of Main Board fuse F5

Test point: Fuse F5
Expected: Continuity present

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

Scale Load Mismatch alarm occurs patient safety

PrisMax System halts when load cell readings (Ch1 and Ch2) differ by more than 30 grams, preventing operation

Ranked causes

1. Load cell readings not synchronized or drift (common)

First check

Verify load cell readings difference

Test point: Ch1 and Ch2 load cells on each weight scale
Expected: within 30 grams of each other

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

Scale mismatch

Scale or measurement values inconsistent

Ranked causes

1. Scale mismatch condition (unknown)

Scale stops working after programming patient safety

GD microprocessor scales fail to operate after attempted software programming

Ranked causes

1. Attempting to program Scale with GD microprocessor (P/N D8101-0X) (common)

First check

Verify scale microprocessor type before programming

Test point: Scale hardware identification
Expected: ST microprocessor type (not GD microprocessor P/N D8101-0X)

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

Serial RS-232 ports do not work

Main Board fuse F5 blown prevents Serial RS-232 port communication. Isolation Board SST does not pass Warmer Serial ports. LED 8 (RED – WiFi Power On) is off.

Ranked causes

1. Main Board fuse F5 blown (unknown)

First check

Measure continuity of Main Board fuse F5

Test point: Fuse F5
Expected: Continuity present

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

Serial RS-232 ports not working

Main Board F5 fuse is blown, causing loss of serial communication

Ranked causes

1. Main Board F5 fuse is blown (common)

First check

Test Main Board F5 fuse continuity

Test point: F5 fuse
Expected: Continuity present (fuse not blown)
Tools: multimeter

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

Software install fails with mixed scales configuration

'Fail' message appears in Software Install Page 3 of 4 (Component Update) in Service Mode when new Top Plate design scales are mixed with older scales

Ranked causes

1. Mixed scales configuration (old and new Top Plate design) (common)

First check

View CRC values in Software Update Page Service Mode

Test point: Software Install Component Update page
Expected: BootCRC and AppCRC displayed

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

System Reset Alarm B2222 displayed

Alarm B2222 is displayed once after an unexpected reset has occurred and subsequent startup completes

Ranked causes

1. Unexpected system reset occurred (unknown)

First check

Verify system completed startup after unexpected reset

Test point: Display screen
Expected: B2222 System Reset Alarm displayed

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

Therapy Recovery event requiring B1404 investigation patient safety

System undergoes Therapy Recovery potentially due to root causes such as Scales Mismatch or Software Exception

Ranked causes

1. Root cause of Therapy Recovery (Scales Mismatch, Software Exception, or other system failure) (unknown)

First check

Review event log for actual Backup Speaker current absorption

Test point: Event log measurement value
Expected: Log shows detected Backup Speaker current to confirm if B1404 is linked to current exceeding upper limit

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

Unexpected current spike during power-on or power-off caution

Counterfeit DC/DC converter on Isolation Board causes current spike that may exceed Main Board fuse F5 maximum allowed current on +24V supply

Ranked causes

1. Counterfeit DC/DC converter installed on Isolation Board (common)

First check

Verify Isolation Board lot number against affected lots list

Test point: Isolation Board component designation
Expected: Lot number not in counterfeit list

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

Unexpected system shutdown during treatment patient safety

System fails during active dialysis treatment session requiring recovery

Ranked causes

1. Internal system fault (unknown)

First check

Confirm prior treatment information restored

Test point: System display after recovery sequence
Expected: Prior treatment parameters and session data available after Therapy Recovery completes

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

Error codes

Code	Meaning	Trigger	Severity
`B1215`	ARPS Self-Test Fail	Auto Re-Positioning System pump segment failure or degradation	warning
`B1273`	ARPS Leak failure	Liquid level adjustment interrupted while system waiting to start ARPS-return pressure equalization	error
`B1404`	Current of Backup Speaker out of range	Detected absorbed current exceeds limit during power-on self-test or after Therapy Recovery	error
`B1404`	Alarm after therapy recovery	System detects internal failure during treatment and initiates Therapy Recovery sequence	warning
`B1404`	Backup speaker current test failure during therapy recovery	POST/BIOT backup speaker current test failure during therapy recovery sequence	warning
`B2222`	System Reset Alarm	Unexpected system reset has occurred	warning
`B2222`	System reset completion alarm after operator-initiated reboot	Operator presses on/off button to reset system after malfunction halt	info
`B2247`	Safety alarm with automatic reset trigger	Safety alarm condition detected	critical
`FA-2020-064`	Acronym Interpretation Leading to Improper Therapy Settings	Software versions prior to SW 3.2 installed on PrisMax systems	error
`FA-2021-047`	Software Prescription Settings Change without User Interaction	Software versions prior to SW 3.2 installed on PrisMax systems	error
`One of Trunk ProductID and Price Book Entry must be select:`	Organization mismatch during part tracker creation in Boost system	Work Order created by user from one organization; FSE from different organization consuming part from Customer Stock	error
`Scale Load Mismatch`	Load cell readings (Ch1 and Ch2) differ by more than 30 grams	Load cell readings not within 30 grams tolerance during operation	error
`Scale Load Mismatch`	Load cell readings are not within 30 grams of each other on one of the five weight scales	Load cell Ch1 and Ch2 readings diverge beyond 30 gram threshold during operation	error
`T0802`	Auto-effluent bags full alarm	Therapy state transition while alarm still active	warning
`T1119`	Check patient chemistry alarm	Therapy state transition while alarm still active	warning
`T1660`	Prescription changes timeout alarm	Therapy state transition while alarm still active	warning
`T2255`	TherMax communication failure with PrisMax	Serial RS-232 port communication broken, typically due to Main Board fuse F5 blown or defective Isolation Board	error
`T2288`	TherMax membrane power off alarm	Therapy state transition while alarm still active	warning
`T2315`	Foam detected in ARPS/liquid level handling	Foam detection processing starts before normalized threshold loaded; default threshold inappropriate	warning
`T2330`	Check ECCO2R fluid balance alarm	Therapy state transition while alarm still active	warning

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.