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Manufacturer
Model
What This Guide Helps With
AED status indicator not showing “ready,” often caused by battery, pads, or self-test issues preventing the device from being rescue-ready.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Do not rely on this AED if the ready indicator is not active
- Immediately obtain a backup AED if one is needed for patient care
Expected: A functional AED is available for emergencies
Why it matters: A non-ready AED may fail during a cardiac event
Verify Indicator Status
- Observe the AED status indicator window
- Check if it shows blank, red, or flashing instead of green
Expected: Indicator confirms non-ready condition
Why it matters: Confirms a true fault vs. user misinterpretation
Check Battery Installation and Status (Most Common Cause)
- Open the battery compartment and verify:
- Battery is fully seated
- Correct Defibtech battery type is installed
- No corrosion or debris on contacts
- If available, replace with a known-good battery
Expected: Indicator returns to green after battery replacement
Why it matters: AED self-tests rely on sufficient battery power
Inspect Electrode Pads Connection
- Ensure pads are properly connected to the AED
- Verify pads are within expiration date
- Confirm packaging is intact (not opened or dried out)
- Reseat or replace pads if needed
Expected: AED recognizes pads and completes self-test
Why it matters: Missing or expired pads will trigger a non-ready condition
Allow Device to Complete Self-Test
- After battery or pad adjustments, allow the AED time to run its internal self-test
- Listen for audible prompts or observe indicator changes
Expected: Indicator turns green after successful self-test
Why it matters: The AED must verify internal readiness before indicating “ready”
Check for Audible Alerts or Beeping
- Listen for periodic chirping or alerts
- Refer to indicator patterns and sounds (if known) to identify fault type
Expected: No beeping once issue is resolved
Why it matters: Beeping typically indicates maintenance or readiness issues
Inspect for Environmental or Storage Issues
- Check if the AED has been exposed to extreme temperatures
- Check for moisture or humidity exposure
- Inspect for physical damage
- Move to proper storage conditions if needed
Expected: Normal conditions allow proper operation
Why it matters: Environmental stress can affect battery and electronics
If the Problem Persists
If the ready indicator still does not show ready after verifying battery, pads, and basic conditions, internal failure or self-test failure is likely.
Remove the AED from service, label it Out of Service, and send it for repair or bench evaluation.
Knowing when to stop prevents unsafe equipment from remaining in circulation.
Clinical Use Tip
Never troubleshoot or attempt to rely on an AED during an active emergency. Always use a confirmed ready unit for patient care first.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"AED ready indicator not showing green; unit reported as not ready for use."
Cause
What was observed during troubleshooting.
Example:
"Expired electrode pads prevented successful self-test."
Resolution
What action was taken.
Example:
"Replaced pads and verified ready indicator returned to green."
Helpful Details to Include (If Known)
- Battery replaced with known-good unit
- Pads expiration date checked
- Pads connector reseated
- Indicator status (color/blank)
- Audible alerts present or not
- Environmental conditions assessed
- Final device status (Ready / Out of Service)
Final Thought
AED readiness is critical for patient survival. Always start with simple external checks like battery and pads before escalating. Removing a non-ready AED from service is the correct and safe decision when issues persist. Proper documentation ensures reliability across the fleet.
That is successful troubleshooting.