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What This Guide Helps With
Evaluates weak or inaudible alarm output caused by settings, obstruction, environmental noise, contamination, housing position, or speaker-system failure.
Step-by-Step Troubleshooting
1. Protect the Patient
Do not leave a patient dependent on a feeding pump whose alarms cannot be reliably heard by clinical staff.
Provide another verified pump or an appropriate alternate observation method while the device is evaluated.
Expected outcome: The patient remains protected by a reliable alarm pathway.
2. Confirm the Alarm Complaint
Determine whether all alarms are faint, one type seems affected, the problem occurs only in a specific room, or staff cannot hear the alarm from the expected monitoring location.
Expected outcome: The alarm problem is distinguished from an environmental audibility issue.
3. Verify Alarm Volume Setting
Check the normal user-accessible alarm-volume configuration and ensure it is set as intended.
Do not enter unauthorized service menus.
Expected outcome: The pump is configured for the expected audible level.
If correcting the normal volume setting restores adequate alarm audibility, complete functional verification and stop troubleshooting.
4. Inspect the Speaker Area
Check the external speaker opening for tape, labels, bedding material, dried formula, debris, or other material that could block sound.
Inspect for housing damage near the speaker.
Expected outcome: The speaker opening is unobstructed and undamaged.
5. Evaluate Pump Placement
Confirm that the pump was not positioned against a wall, covered with linens, inside a bag, or otherwise placed so that alarm sound was muffled.
Expected outcome: Normal pump placement allows sound to radiate freely.
6. Generate a Controlled Alarm
Using a nonpatient setup, create an appropriate alarm condition or perform the available normal alarm check.
Listen for distortion, intermittency, unusually weak sound, or absence of audible output.
Expected outcome: The alarm is clear and consistently audible at the configured setting.
7. Compare With a Known-Good Unit
Under similar environmental conditions and settings, compare the affected pump with another verified Kangaroo Joey.
Expected outcome: The affected pump produces comparable audible alarm output.
8. Check for Intermittency
Repeat the alarm test after restarting the pump and during normal handling.
Do not strike or flex the housing.
Expected outcome: Alarm output remains stable.
9. Verify All Available Alarm Indications
Confirm that audible and visible alarm indications associated with the test condition operate as expected.
Expected outcome: The pump provides a dependable alarm indication.
10. Escalate Any Speaker Failure
Remove the pump from service if the speaker remains faint, distorted, intermittent, or inaudible despite correct settings and an unobstructed opening.
Expected outcome: A pump with unreliable audible alarms is not returned to clinical use.
If the Problem Persists
Volume settings, placement, environmental masking, and external obstruction have been ruled out. The remaining problem may involve the speaker, audio drive circuitry, internal connection, or another service-level alarm fault.
Remove the pump from service, label it Out of Service, and send it for qualified repair or bench evaluation using appropriate Cardinal Health documentation and test equipment. Alarm verification must be completed before return to service.
Knowing that an unreliable alarm is itself sufficient reason for removal from service is proper troubleshooting.
Clinical Use Tip
Alarm audibility must be evaluated where the pump is actually used; a technically functioning speaker can still be ineffective if the pump is covered or poorly positioned.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Nursing reported that the Kangaroo Joey alarm was difficult to hear even though the pump was alarming normally."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found the speaker opening partially covered by an equipment label."
Resolution
What action was taken.
Example:
"Removed the obstruction, verified clear audible and visual alarm operation, and returned the pump to service."
Helpful Details to Include (If Known)
- Alarm type tested
- Programmed volume setting
- Speaker-opening condition
- Pump placement
- Environmental noise
- Comparison with known-good pump
- Audible distortion or intermittency
- Visible alarm behavior
- Final alarm test
- Final device status
Final Thought
Treat alarm audibility as a safety function, eliminate settings and external obstruction first, verify performance under realistic conditions, and escalate any persistent or intermittent speaker problem.
That is successful troubleshooting.