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What This Guide Helps With
Troubleshooting Error 9007 when the LIFEPAK 20 / 20e reports that a requested defibrillation shock was not delivered, potentially preventing critical therapy delivery.
Step-by-Step Troubleshooting
1. Ensure Patient Safety First
- Immediately remove the LIFEPAK 20 / 20e from patient use if Error 9007 is active, recurring, or associated with failed therapy delivery.
- Provide clinical staff with another verified defibrillator before troubleshooting continues.
- Do not attempt repeated shocks on a patient to determine whether the fault will recur.
- Expected: Patient care continues using a known-good defibrillator.
- Why it matters: Error 9007 directly concerns failure to deliver defibrillation therapy.
2. Verify the Reported Error and Behavior
- Confirm the exact reported or logged condition: Error 9007 – Shock Not Delivered.
- Review the Service Log and determine whether the error occurred during synchronized cardioversion, manual defibrillation, after charging completed, when the SHOCK control was activated, during controlled performance testing, or intermittently.
- Identify whether the device charged but the shock was not delivered.
- Determine whether the charge indication disappeared without the expected discharge.
- Determine whether the therapy sequence was interrupted.
- Determine whether the error occurred repeatedly or only once.
- Expected: Error 9007 is confirmed in the Service Log or clearly associated with a failed shock-delivery event.
- Why it matters: This distinguishes a true system-reported therapy failure from incorrect setup, an incomplete charge sequence, or operator misunderstanding.
3. Check the Power Source and Device Condition
- Confirm AC power is stable when applicable.
- Confirm the installed battery is properly seated and adequately charged.
- Inspect the device for physical damage.
- Check for contamination or liquid intrusion.
- Note unusual sounds, heat, or odor.
- Do not continue powered testing if there is evidence of overheating, burning odor, liquid intrusion, or significant physical damage.
- Expected: The device has a stable power source and no obvious external condition explains the therapy failure.
4. Inspect Therapy Cables and Connections
- With the device removed from clinical use, confirm the therapy cable is fully seated.
- Confirm paddle connections are secure, if used.
- Confirm the test load connection is secure during bench evaluation.
- Inspect connectors for bent, damaged, contaminated, or loose conditions.
- Inspect therapy cables for obvious cuts, crushing, or strain damage.
- Reconnect accessible therapy connections and repeat only approved controlled testing.
- Expected: Therapy connections are secure and physically intact.
- Why it matters: A failed or incomplete external therapy connection can resemble a shock-delivery problem and should be ruled out before assuming an internal fault.
5. Verify the Controlled Test Setup
- Confirm an approved defibrillator analyzer or test load is connected.
- Confirm the therapy cable matches the test setup.
- Confirm energy selection is intentional.
- Confirm synchronization is disabled unless specifically being tested.
- Confirm no accessory or setup condition is unintentionally inhibiting discharge.
- Expected: The test setup supports a valid shock-delivery evaluation.
- Why it matters: Incorrect test configuration can create an apparent failure that is not caused by the defibrillator.
6. Isolate External Accessories
- When compatible known-good accessories are available, substitute the therapy cable one at a time.
- Substitute the paddle assembly, if applicable.
- Substitute the appropriate test interface.
- Repeat controlled testing after each substitution.
- Expected: Either the error follows an accessory or remains with the LIFEPAK 20 / 20e.
- If replacing an external accessory resolves the condition, complete required operational and therapy testing.
- Document the failed accessory.
- Return the device to service only after all required tests pass.
- Stop troubleshooting when the issue is resolved and verified.
7. Reload the Device Software
- If external causes and test setup issues have been ruled out and Error 9007 remains applicable, follow the authorized service process to reload the LIFEPAK 20 / 20e device software.
- Use only approved software, service tools, and controlled Clinical Engineering procedures.
- Expected: The software reload completes successfully and the device can proceed to required inspection.
- Why it matters: The specified corrective action for Service Log Error 9007 is to reload the device software.
8. Perform the Required Performance Inspection Procedure
- After the software reload, complete the required PIP before considering the device for clinical use.
- Verify defibrillator charging.
- Verify shock delivery.
- Verify delivered energy.
- Verify therapy controls.
- Verify applicable synchronized therapy functions.
- Verify required alarms and indicators.
- Verify overall operational readiness.
- Expected: The LIFEPAK 20 / 20e passes the complete required PIP and therapy testing without recurrence of Error 9007.
- If the error is cleared and all required tests pass, document the repair and return the device to service.
If the Problem Persists
If Error 9007 remains after confirming the reported error, checking stable power, inspecting therapy cables and connections, verifying the controlled test setup, isolating external accessories, and reloading the device software, then external and common causes have been ruled out.
A persistent Shock Not Delivered condition strongly indicates a device-level therapy fault requiring further authorized repair or bench evaluation.
- Remove the device from service.
- Label the device Out of Service.
- Send the device for authorized repair or advanced bench evaluation.
- Prevent the device from returning to clinical use until the fault is corrected and the complete required PIP passes.
Knowing when to stop is proper troubleshooting. A defibrillator with unresolved shock-delivery failure should never be returned to service based only on an error clearing temporarily.
Clinical Use Tip
Never troubleshoot Error 9007 on an active patient. Move the patient to a backup verified defibrillator first and maintain therapy continuity throughout the evaluation.
A prior Shock Not Delivered event should be treated seriously even if the device later appears functional. Complete corrective action and the required PIP before clinical release.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"LIFEPAK 20 / 20e reported Service Log Error 9007 – Shock Not Delivered. Device was removed from service due to reported failure of defibrillation therapy delivery."
Cause
What was observed during troubleshooting.
Example:
"External power, therapy connections, test setup, and accessible accessories were evaluated with no external cause identified. Error condition required manual-specified software corrective action."
Resolution
What action was taken.
Example:
"Reloaded device software using approved service process. Completed required PIP and controlled defibrillator therapy testing. Verified charging, shock delivery, and applicable delivered-energy performance passed before return to service."
Helpful Details to Include (If Known)
- Alarm behavior, including exact Error 9007 occurrence, date and time of event, recurrence, and whether the event occurred during startup, clinical use, or bench testing.
- Accessories swapped, including therapy cable, paddle assembly, and appropriate test interface substitutions.
- Power behavior, including AC power status, battery condition, charging completion, and whether SHOCK activation occurred.
- Environmental factors, including contamination, liquid intrusion, unusual heat, physical damage, or other conditions present when the error occurred.
- Indicator lights and device behavior, including selected energy level, charge indication, therapy sequence interruption, and any related warnings or Service indicators.
- Final device status, including defibrillator analyzer or test-load results, software reload completion, PIP results, delivered-energy test results, recurrence after corrective action, and whether the device was returned to service or escalated for repair.
Final Thought
Error 9007 is a therapy-critical condition because it records that a shock was not delivered. Clinical Engineering troubleshooting should begin with patient safety, confirm the actual Service Log event, rule out external setup and accessory causes, and then follow the specified software corrective action.
The device should return to service only after the required PIP confirms reliable therapy performance. Clear documentation of the original failure, corrective action, testing, and final disposition is essential. Safe troubleshooting depends on a logical external-first process, appropriate escalation, and complete documentation.
That is successful troubleshooting.