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Asset Type
Sequential Compression Device (SCD)
Manufacturer
Model
What This Guide Helps With
Pump not turning on due to power supply, cord, outlet, or external electrical issues.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Remove the device from active patient use before troubleshooting.
- Expected: Patient placed on alternate DVT prophylaxis.
Verify the Reported Issue
- Press the power button and observe for any lights, sounds, or display activity.
- Expected: No response from the unit.
- Why it matters: Confirms true no-power condition vs display-only failure.
Check Power Cord Connection
- Ensure the power cord is fully inserted into the device and wall outlet.
- Disconnect and firmly reconnect both ends.
- Expected: Secure connection with no looseness.
- Why it matters: Loose cords are a common cause of power loss.
- If unit powers on → stop troubleshooting.
Test the Wall Outlet
- Plug a known working device into the same outlet.
- Expected: Outlet provides power.
- If no power → move SCD to a known-good outlet and retest.
- Why it matters: Eliminates facility power issues.
Inspect Power Cord for Damage
- Check for cuts, fraying, bent prongs, or exposed wiring.
- Expected: Cord is intact and undamaged.
- If damaged → remove from service and replace cord.
- If replaced and unit powers on → stop troubleshooting.
Check Power Switch / Button Function
- Press the power button multiple times and observe for tactile response or sticking.
- Expected: Button feels normal and responsive.
- Why it matters: Mechanical button failure can prevent power-up.
Inspect for External Indicators
- Look for any faint lights, flickering, or intermittent power behavior when plugging in.
- Expected: No signs of partial power.
- Why it matters: Intermittent signs may indicate internal power supply issues.
Check for Blown Fuse (If Accessible Externally)
- If the unit has an external fuse holder, inspect and replace with the correct rating if blown.
- Expected: Fuse intact.
- Why it matters: A blown fuse is a common external failure point.
- If replaced and unit powers on → stop troubleshooting.
If the Problem Persists
If all external power sources, connections, and accessories have been verified, the issue is likely internal (power supply or internal electronics failure).
Remove the device from service, label it Out of Service, and send for repair or bench evaluation.
Knowing when to stop prevents unnecessary risk and aligns with proper Clinical Engineering practice.
Clinical Use Tip
Do not troubleshoot a non-powering SCD on an active patient. Always transition the patient to a functioning device before evaluation.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"SCD pump would not power on when plugged in."
Cause
What was observed during troubleshooting.
Example:
"Failed power cord identified during inspection."
Resolution
What action was taken.
Example:
"Replaced power cord and confirmed normal operation."
Helpful Details to Include (If Known)
- Outlet tested and verified
- Alternate outlet used
- Power cord condition
- Button response
- Any indicator lights present or absent
- Fuse status (if applicable)
- Final device status (operational or sent for repair)
Final Thought
Power issues should always be approached from the outside in. Start with the simplest electrical checks before assuming internal failure. This protects patient safety, reduces unnecessary repairs, and ensures efficient troubleshooting. Proper documentation reinforces the value of your work.
That is successful troubleshooting.