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What This Guide Helps With
Error 301 US upper avg high indicating abnormal ultrasonic sensor readings, often causing infusion interruption or false fluid detection issues.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Remove the pump from active patient use if the error is present
- Transfer infusion to a functioning pump if therapy is ongoing
- Verify patient therapy continues safely on alternate equipment
Verify the Reported Error and Behavior
- Power on the pump and confirm Error 301 US upper avg high is displayed
- Observe when the error occurs (startup, set loading, infusion)
- Check for symptoms such as failure to start infusion or repeated alarms
Check IV Set Installation and Compatibility
- Verify correct Baxter-approved IV set is installed
- Ensure tubing is properly seated in the pump channel
- Inspect for twists, pinching, or misalignment
Inspect for Fluid Contamination in Pump Channel
- Open the pump door and inspect for fluid spills or residue
- Check for moisture or dried medication near sensor area
- Clean the channel per manufacturer guidelines if needed
Check for Air Bubbles or Improper Priming
- Inspect tubing for air bubbles or foam
- Ensure tubing is fully primed
- Confirm a consistent fluid column through the sensor area
Swap IV Set with Known Good Set
- Replace tubing with a new, known-good Baxter-approved set
- Observe if the error clears
Power Cycle the Pump
- Turn the pump off and wait several seconds
- Power the pump back on and recheck for error
Evaluate for Environmental Factors
- Check for excessive vibration or movement
- Assess for electromagnetic interference
- Ensure normal operating temperature conditions
If the Problem Persists
If Error 301 continues after all external checks, external causes have been ruled out and ultrasonic sensor readings remain out of range.
- Remove the device from service
- Label the device as Out of Service
- Send for repair or bench evaluation
Clinical Use Tip
Never troubleshoot fluid detection or sensor-related errors while connected to a patient. Always transfer to a backup device first.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Pump displaying Error 301 US upper avg high and not allowing infusion start"
Cause
What was observed during troubleshooting.
Example:
"Ruled out IV set misload and contamination; error persisted with known-good tubing, indicating likely ultrasonic sensor fault"
Resolution
What action was taken.
Example:
"Removed pump from service and sent for repair"
Helpful Details to Include (If Known)
- Alarm behavior
- Accessories swapped
- Power behavior
- Environmental factors
- Indicator lights
- Final device status
Final Thought
Ultrasonic sensor errors are often caused by external setup or contamination issues. Always rule out tubing, priming, and cleanliness before escalating to internal failure. Proper troubleshooting ensures both safety and efficiency.
That is successful troubleshooting.