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What This Guide Helps With
This guide addresses Error 21 during priming when the pump cannot detect the stopcock feed position. This prevents proper priming and stops feeding operation, delaying or interrupting patient nutrition delivery.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Stop the pump if actively infusing
- Disconnect from the patient if needed
- Transition feeding to a backup pump or method
Verify the Reported Error and Behavior
- Power on the pump and attempt to prime
- Confirm Error 21 appears on the display
- Observe when the error occurs (typically during priming)
- Listen for any motor movement or failed attempt
Check Pump Set Installation
- Open the pump door
- Remove and reseat the feeding set
- Ensure tubing is correctly aligned in guides
- Confirm cassette is fully seated
- Close and latch the door securely
Inspect the Feeding Set for Damage
- Verify correct Kangaroo ePump-compatible set is in use
- Inspect cassette for cracks, warping, or defects
- Replace with a new, known-good feeding set
Re-Prime the System
- Restart the pump
- Initiate the priming cycle
- Observe for smooth operation without interruption
Check for Obstructions or Resistance
- Ensure tubing is not kinked or pinched
- Verify no pressure is applied to the cassette or door
- Listen for abnormal or strained motor sounds
If the Problem Persists
If Error 21 continues after verifying setup and replacing the feeding set, external causes have been ruled out.
- Remove the device from service
- Label the device as Out of Service
- Send for repair or bench evaluation
Clinical Use Tip
Never troubleshoot or repeatedly prime the system while connected to a patient. Always disconnect and verify setup using a test configuration before returning to clinical use.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Pump displaying Error 21 during priming and unable to start feeding."
Cause
What was observed during troubleshooting.
Example:
"Error persisted after reseating and replacing feeding set; no external setup issues identified."
Resolution
What action was taken.
Example:
"Removed pump from service and sent for repair due to suspected internal stopcock position sensing failure."
Helpful Details to Include (If Known)
- Alarm behavior
- Accessories swapped
- Power behavior
- Environmental factors
- Indicator lights
- Final device status
Final Thought
Error 21 typically indicates a failure to detect proper stopcock positioning during priming. Always rule out setup and disposable-related causes first. If unresolved, escalate quickly to protect patient safety and prevent unreliable feeding operation.
That is successful troubleshooting.