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Asset Type
Electrocardiograph (EKG) Machine
Manufacturer
Model
What This Guide Helps With
EKG unit not charging, running only on battery, or shutting down unexpectedly due to power supply, battery, or connection issues.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- If the device is in use, transfer the patient to another EKG machine before troubleshooting.
- Expected: Patient monitoring continues uninterrupted.
- Why it matters: Power loss can interrupt ECG acquisition and documentation.
Verify Power Source and Outlet
- Check the wall outlet using another device or outlet tester.
- Actions:
- Confirm outlet is live
- Try a known working outlet
- Expected: Outlet provides consistent power.
- Why it matters: Dead or switched outlets are a common external cause.
Inspect AC Power Cord and Adapter
- Examine the power cord and adapter for damage or loose connections.
- Actions:
- Ensure cord is firmly seated in both wall and device
- Check for fraying, bent prongs, or loose adapter connections
- Swap with a known good cord if available
- Expected: Secure connection with no visible damage.
- Why it matters: Faulty cords prevent charging even when plugged in.
Check Power Indicator Lights
- Observe device indicators when plugged into AC power.
- Actions:
- Look for charging LED or power indicator
- Note if device powers on with AC connected
- Expected: Charging indicator illuminates or device runs on AC power.
- Why it matters: Confirms whether the unit is recognizing external power.
Verify Battery Seating
- If accessible externally, ensure the battery is properly installed.
- Actions:
- Power off device
- Remove and reseat battery (if user-accessible)
- Inspect contacts for dirt or damage
- Expected: Battery sits firmly with clean contact points.
- Why it matters: Poor contact prevents charging and power transfer.
Check Battery Age and Condition
- Determine battery history and performance.
- Actions:
- Ask staff about runtime duration
- Note if battery drains quickly or fails to hold charge
- Expected: Battery should hold charge for normal operation time.
- Why it matters: Worn batteries may not accept or retain a charge.
Test Device on AC Power Only
- Operate the unit while plugged in.
- Actions:
- Remove battery (if possible) and run on AC
- Observe stability and functionality
- Expected: Device operates normally on AC power.
- Why it matters: Helps isolate battery vs internal charging circuit issue.
Inspect for Heat, Smell, or Damage
- Check for signs of electrical failure.
- Actions:
- Look for overheating near power input
- Smell for burnt odor
- Listen for unusual noises
- Expected: No abnormal heat, smell, or sound.
- Why it matters: Indicates potential internal failure requiring escalation.
If the Problem Persists
If power source, cord, and battery have been verified, the issue is likely internal (charging circuit, power board, or battery interface).
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 ensures safe equipment use.
Clinical Use Tip
Do not troubleshoot charging issues while the device is needed for patient care. Always transition to a backup unit before removing from service.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"EKG machine not charging and shuts off when unplugged."
Cause
What was observed during troubleshooting.
Example:
"Failed battery unable to accept or hold charge."
Resolution
What action was taken.
Example:
"Replaced battery and verified normal charging operation on AC power."
Helpful Details to Include (If Known)
- Outlet tested and verified working
- Power cord inspected/swapped
- Charging indicator status
- Battery runtime observations
- Device operation on AC only
- Any heat, smell, or visible damage
- Final device status (in service or sent for repair)
Final Thought
Effective troubleshooting starts with simple external checks and moves logically toward isolation. Battery and power issues are often straightforward, but recognizing when escalation is needed is critical. Always prioritize patient safety and document clearly for continuity.
That is successful troubleshooting.