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Asset Type
Sequential Compression Device (SCD)
Manufacturer
Model
What This Guide Helps With
Error E3 Low Pressure indicating insufficient compression pressure in leg sleeves or foot cuffs, resulting in ineffective therapy delivery.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Remove the device from active patient use if compression is not functioning properly
- Apply alternate DVT prevention therapy if needed
- Confirm patient remains protected during troubleshooting
Verify the Reported Error and Behavior
- Power on the unit and confirm Error E3 Low Pressure is displayed
- Observe when the error occurs (during inflation cycles)
- Check if sleeves or cuffs feel underinflated or loose
- Determine if the unit continues cycling without reaching firmness
Check Sleeve or Cuff Application (Most Common Cause)
- Ensure sleeves are properly wrapped and secured
- Confirm correct size is being used for the patient
- Verify there are no gaps or loose areas
Inspect Tubing Connections
- Ensure tubing is fully seated in device ports
- Disconnect and reconnect tubing firmly
- Verify correct port usage if multiple channels are present
Check for Leaks in Sleeves, Cuffs, and Tubing
- Listen for hissing sounds during inflation
- Feel for escaping air along tubing and garments
- Inspect for cracks, punctures, or worn material
- Swap with known good sleeves or cuffs if available
Inspect for Kinks or Obstructions
- Straighten any kinks in tubing
- Ensure tubing is not pinched under bed rails or equipment
- Confirm airflow path is unobstructed
Perform a Functional Test with Known Good Accessories
- Replace sleeves, cuffs, and tubing with known good components
- Run multiple compression cycles
- Verify proper pressure buildup and error resolution
If the Problem Persists
If Error E3 Low Pressure continues after all external checks, external causes have been ruled out. The issue is likely internal (pump weakness, internal leak, or pressure sensor fault).
- Remove the device from service
- Label the unit Out of Service
- Send for repair or bench evaluation
Clinical Use Tip
Never troubleshoot pressure-related issues while the device is actively connected to a patient. Always move the patient to a backup device before testing.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Device displaying Error E3 Low Pressure; sleeves not inflating to therapeutic level."
Cause
What was observed during troubleshooting.
Example:
"Air leak identified in sleeve tubing connection (or) no external issue found—suspected internal pressure fault."
Resolution
What action was taken.
Example:
"Replaced defective sleeve/tubing and verified operation (or) removed device 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
Low pressure errors directly impact therapy effectiveness. Always rule out simple external causes like fit, leaks, and tubing issues before escalating to internal failure. Prioritize patient safety and clear documentation at every step.
That is successful troubleshooting.