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Asset Type
Sequential Compression Device (SCD)
Manufacturer
Model
What This Guide Helps With
Error E12 Tubing Disconnect Error indicates low garment pressure or disconnected tubing, resulting in no compression therapy being delivered to the patient.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Remove the device from active patient use if compression therapy is not functioning
- Apply alternate DVT prophylaxis if needed
- Ensure patient remains protected during troubleshooting
Verify the Reported Error and Behavior
- Power on the unit and confirm Error E12 is displayed
- Observe if the error occurs at startup or during therapy
- Check for lack of sleeve inflation or pressure buildup
- Look for repeated cycling without compression
Check Tubing Connections (Most Common Cause)
- Inspect all tubing connections from the device to the garment
- Ensure tubing is fully seated in the device ports
- Confirm connections at the garment sleeves
- Disconnect and firmly reconnect all tubing
Inspect Garments (Sleeves) for Proper Application
- Verify sleeves are properly wrapped and secured to the patient
- Ensure garment ports are intact and connected
- Confirm correct garment type is being used
Check for Kinks, Leaks, or Damage in Tubing
- Inspect tubing for kinks, bends, or compression
- Check for cracks, holes, or loose fittings
- Replace tubing if any damage is found
Test with Known Good Tubing and Garments
- Replace tubing set with a known working set
- Replace sleeves with known good garments
- Verify whether normal operation returns
Power Cycle the Device
- Turn the device off
- Wait 10–15 seconds
- Power the device back on
- Observe for normal startup and garment detection
If the Problem Persists
If all tubing, garments, and connections are verified and the error continues, external causes have been ruled out. Persistent low-pressure detection indicates likely internal pump, pressure sensor, or valve failure.
- Remove device from service
- Label Out of Service
- Send for repair or bench evaluation
Clinical Use Tip
Never troubleshoot compression therapy on an active patient. Always transition the patient to a functioning device before performing any troubleshooting steps.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Device displaying Error E12 Tubing Disconnect Error; sleeves not inflating during use."
Cause
What was observed during troubleshooting.
Example:
"Disconnected or loose tubing connection identified, preventing pressure buildup."
Resolution
What action was taken.
Example:
"Reseated tubing connections and verified normal compression cycles."
Helpful Details to Include (If Known)
- Alarm behavior
- Accessories swapped
- Power behavior
- Environmental factors
- Indicator lights
- Final device status
Final Thought
Error E12 is most commonly caused by simple connection or accessory issues. Always rule out tubing and garment problems before suspecting internal failure. Prioritize patient safety, follow a logical troubleshooting process, and escalate when necessary.
That is successful troubleshooting.