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Asset Type
Electrocardiograph (EKG) Machine
Manufacturer
Model
What This Guide Helps With
EKG unit not powering on, not charging, or shutting down unexpectedly due to external power, battery, or connection issues.
Step-by-Step Troubleshooting
Ensure Patient Safety First
If the device is in use, move the patient to another functioning EKG machine before troubleshooting.
- Expected: Patient monitoring continues without interruption.
- Why it matters: Power loss can interrupt ECG acquisition and delay diagnosis.
Verify Power Source (Wall Outlet)
Test the outlet using another device or outlet tester.
- Plug in a known working device
- Try a different outlet if needed
- Expected: Outlet provides consistent power.
- Why it matters: Dead or switched outlets are a common, easily missed issue.
Inspect AC Power Cord and Adapter
Check the power cord and external power supply.
- Ensure cord is fully seated in both the device and outlet
- Inspect for fraying, bent prongs, or damage
- Swap with a known good cord/adapter if available
- Expected: Secure, undamaged connection.
- Why it matters: Faulty cords prevent charging and may mimic battery failure.
Check Power Indicators and Device Response
Attempt to power on the unit and observe indicators.
- Press power button and watch for lights, screen activity, or sounds
- Observe battery/AC indicators if visible
- Expected: Device powers on or shows charging indication.
- Why it matters: Helps determine if issue is total power loss vs battery-only issue.
Confirm Battery Charging Behavior
With AC connected, monitor charging status.
- Leave unit plugged in for several minutes
- Check for charging icon or indicator change
- Note if unit only operates while plugged in
- Expected: Battery shows charging or increased charge level.
- Why it matters: Identifies whether battery is accepting charge or completely failed.
Perform a Power Reset
Reset the system to clear potential power management faults.
- Power off the unit
- Disconnect AC power
- Wait 30–60 seconds
- Reconnect and power on
- Expected: Device powers on normally and resumes charging.
- Why it matters: Temporary faults can prevent proper charging detection.
Inspect Battery Compartment (If Accessible)
Check battery seating without disassembly.
- Ensure battery is properly seated
- Look for swelling, leakage, or corrosion
- Expected: Battery is secure and shows no visible damage.
- Why it matters: Poor contact or damaged batteries will prevent charging.
Test with Known Good Battery (If Available)
Swap the battery if possible.
- Expected: Device charges and operates normally with known good battery.
- Why it matters: Confirms whether issue is battery-related vs internal charging circuit.
If the Problem Persists
If all external power sources, cords, and battery checks have been completed and the device still does not charge or power on, the issue is likely internal (charging circuit or power board).
Remove the device from service, label it Out of Service, and send it for repair or bench evaluation.
Knowing when to stop prevents unnecessary risk and ensures proper repair handling.
Clinical Use Tip
Do not troubleshoot power issues on a device actively connected to a patient. Always transition to a functioning EKG machine before beginning.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"EKG unit not charging and shuts off when unplugged."
Cause
What was observed during troubleshooting.
Example:
"Failed battery confirmed after testing with known good battery."
Resolution
What action was taken.
Example:
"Replaced battery and verified proper charging operation."
Helpful Details to Include (If Known)
- Outlet tested and verified working
- Power cord swapped
- Battery indicator behavior observed
- Device powers on with AC only vs not at all
- Battery condition (swelling, damage)
- Final device status (in service or removed)
Final Thought
Effective troubleshooting starts with simple external checks and prioritizes patient safety. Identifying power issues early prevents downtime and unnecessary escalation. When internal faults are suspected, proper removal and documentation ensure safe and efficient repair.
That is successful troubleshooting.