Infusion pump modules · Medley family

Alaris Medley Syringe Module 8110: troubleshooting and error codes

The ServiceForge knowledge base holds 19 documented symptoms for the Alaris Medley Syringe Module 8110, with 38 ranked causes, 10 diagnostic checks with test points and expected values, and 19 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Check Syringe patient safety

Syringe insertion or engagement issue detected; drivearm obstruction or sensor engagement problem

Ranked causes

1. Syringe and/or drivearm obstruction (common)
2. Plunger head not engaged (common)
3. Barrel Clamp not closed (common)
4. Flange detect sensor not engaged (occasional)
5. Binary switches not working properly or sensors defective (occasional)
6. Force sensor harness disconnected and/or defective (occasional)
7. Syringe Size Sensor Assembly harness disconnected and/or defective (occasional)
8. Linear Sensor harness disconnected and/or defective (occasional)

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

Drive Not Engaged patient safety

Plunger drive is not engaging with syringe; force sensor or carriage assembly defective or cam lock issue

Ranked causes

1. Force Sensor Assembly defective (occasional)
2. Plunger head rotates due to dislodged or broken dowel pin and/or tab in Carriage Assembly (occasional)
3. Cam Lock stripped or not engaged (occasional)

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

Occlusion patient safety

Back pressure detected during infusion; tubing obstructed, pressure sensor defective, or excessive downward force applied

Ranked causes

1. Increased back pressure sensed while infusing (common)
2. Pressure Sensor Board and/or Pressure Sensor Harness defective (occasional)
3. Excessive downward pressure applied on drive head (occasional)

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

Syringe Not Recognized patient safety

Syringe not recognized; wrong syringe brand/size, syringe size sensor defective, or logic board software problem

Ranked causes

1. Odd size or wrong brand syringe installed (common)
2. Syringe Size Sensor defective (occasional)
3. Logic Board software problem (rare)

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

Channel Disconnected

Module disconnected from PCU during operation or communication problem with Inter Unit Interface detected

Ranked causes

1. Channel disconnected during operation (common)
2. Channel communication problem with Inter Unit Interface (IUI) (occasional)

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

Pressure Disc Installed patient safety

Pressure sensing disc installed during an infusion or sensor not sensing disc properly

Ranked causes

1. Pressure sensing disc installed during an infusion (occasional)
2. Sensor not sensing disc (occasional)

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

Pressure Disc Removed patient safety

Pressure sensing disc removed during an infusion or sensor sensing disc when it should not be present

Ranked causes

1. Pressure sensing disc removed during an infusion (occasional)
2. Sensor is sensing disc (occasional)

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

Syringe Calibration

System detected Force Sensor Board, pressure disc, or Barrel Clamp requires calibration or part fails calibration

Ranked causes

1. System detected Force Sensor Board, pressure disc, or Barrel Clamp requires calibration (common)
2. Force Sensor Board, pressure disc, Syringe Size Sensor Assembly, or Logic Board fails calibration (occasional)

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

Syringe Drive-Head Error patient safety

Syringe plunger travel impeded or Cam Lock stripped/not engaged during infusion

Ranked causes

1. Syringe plunger travel impeded (occasional)
2. Cam Lock stripped or not engaged (occasional)

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

Syringe Empty patient safety

System reports syringe empty when it is not, or plunger travel is impeded

Ranked causes

1. Force Sensor Board Assembly defective (occasional)
2. Syringe plunger travel impeded (occasional)

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

Calibration: Syringe Module 8110 patient safety

Regular and preventive maintenance calibration using BD Alaris System Maintenance Software to ensure proper device operation.

Ranked causes

1. Routine calibration requirement (common)

First check

Perform regular inspection before each use

Test point: Syringe Module 8110
Expected: Device in good operating condition

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

Channel Errors

Module error detected indicating a problem with channel operation

Ranked causes

1. Module error detected (common)

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

Device dropped or severely jarred patient safety

Physical impact from dropping or jarring the instrument; potential internal damage from trauma

Ranked causes

1. Physical trauma or impact damage (common)

First check

Visual inspection for physical damage

Test point: Exterior housing, connectors, and display
Expected: No cracks, dents, bent connectors, or visible damage

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

Instrument continues to alarm during operation patient safety

Unit alarms and displays error message after power-up self-test passed, indicating detection of internal malfunction during runtime

Ranked causes

1. Internal malfunction detected during continuous self-test (unknown)

First check

Observe displayed error message

Test point: Display screen
Expected: Error message indicating type of internal malfunction

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

PCA Handset Stuck

PCA Module handset is stuck or incorrectly connected

Ranked causes

1. Handset is stuck or incorrectly connected (common)

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

Unit continues to alarm during operation patient safety

Instrument repeatedly triggers alarms and displays messages indicating internal malfunction during normal operation after startup

Ranked causes

1. Internal malfunction detected by continuous self-test (unknown)

First check

Monitor for alarms and error messages during operation

Test point: Display screen and audio alert
Expected: No alarms or error messages; normal operation without self-test failures

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

Unit does not beep or display LEDs do not flash on startup patient safety

Instrument powers on but fails to produce beep sound or show LED segment flash during startup sequence, indicating self-test failure

Ranked causes

1. Internal malfunction detected by self-test (common)

First check

Verify instrument beeps on power-up

Test point: Audio output
Expected: Audible beep

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

Unit does not beep or LEDs do not flash on power-up patient safety

When powering up the instrument, expected beep and LED flash do not occur, indicating self-test failure or malfunction

Ranked causes

1. Internal malfunction detected during self-test (unknown)

First check

Verify beep and LED flash sequence on power-up

Test point: Display LEDs and audio output
Expected: Beep heard and all display LED segments flash

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

Unit has been dropped or severely jarred patient safety

Instrument has sustained physical impact from being dropped or violently shaken

Ranked causes

1. Potential internal damage from physical impact (unknown)

First check

Visual inspection for physical damage

Test point: Entire device housing and connectors
Expected: No cracks, dents, or loose components

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

Error codes

Code	Meaning	Trigger	Severity
`350.6600`	Watchdog circuit failed power-on self test	Power-on self test	critical
`350.6630`	Pressure not tracked by force sensor	Force sensor monitoring during operation	error
`350.6680`	Timer bases; clock frequency out of sync	Power-on self test or during operation	critical
`351.6610`	Unexpected countdown interrupt	Motor watchdog monitoring	error
`351.6660`	Movement error; predicted change in linear position sensor inconsistent with expected position	During plunger movement	error
`351.6720`	Motor steps accumulating too fast or too slow	Motor step monitoring	error
`351.6730`	Too many steps in motor step sample	Motor step monitoring	error
`351.6740`	Nut not engaged during infusion; lever not opened	During infusion startup	error
`351.6750`	Attempt to engage nut timed out before engaging	During drive engagement	error
`351.6760`	Calibration flag not set. Module not calibrated.	Power-on or start of infusion	warning
`351.6770`	Pressure sensing disc circuit test failed during power-on self test	Power-on self test (Syringe Module only)	error
`352.6640`	Force sensor output is zero or is outside acceptable range	Force sensor monitoring	error
`352.6700`	Force sensor circuit check failure	Power-on self test or circuit monitoring	error
`353.6650`	Linear position sensor output is zero or is outside acceptable range	Linear position sensor monitoring	error
`354.6670`	Pressure sensor output is outside acceptable range	Pressure sensor monitoring (Syringe Module only)	error
`354.6690`	Pressure Sensor current monitor: current is outside acceptable range	Pressure sensor current monitoring	error
`355.6620`	Syringe sizer output is outside acceptable range	Syringe sizer monitoring	error
`356.6710`	Digital sensor is outside acceptable range during no-power test	Power-on self test	error
`356.6780`	System detected PCA Handset Key stuck at power-up	Power-up of PCA Module	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.