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What This Guide Helps With
Troubleshoots startup, power, connection, accessory, and environmental conditions that can prevent the Airvo 3 from powering on or becoming ready.
Step-by-Step Troubleshooting
1. Protect the Patient and Maintain Therapy
If the Airvo 3 is supporting a patient and becomes unavailable or unreliable, transfer the patient to an appropriate verified alternative source of respiratory support before troubleshooting. Do not troubleshoot a questionable high-flow oxygen system while a patient depends on it.
Expected outcome: Patient therapy remains safely supported independent of the affected device.
2. Confirm the Exact Reported Condition
Determine whether the unit is completely unresponsive, begins startup and shuts down, displays a message, produces an alarm, or consistently stops during self-test. Ask whether the problem occurs on AC power, battery operation, or both.
Document any displayed message before cycling power.
Expected outcome: The failure is clearly defined and reproducible. If the unit subsequently starts normally and completes its startup checks, continue with final functional verification before returning it to service.
3. Inspect for Obvious Damage or Unsafe Conditions
Inspect the enclosure, power cord, plug, connectors, humidifier area, and accessible accessories for damage, contamination, liquid intrusion, overheating, unusual odor, or evidence of impact.
Do not energize equipment with evidence of liquid intrusion, electrical damage, or overheating.
Expected outcome: No condition is found that requires immediate removal from service. If damage or contamination makes operation unsafe, stop troubleshooting and remove the device from service.
4. Verify the AC Power Source
Confirm the power cord is fully connected to the Airvo 3 and an appropriate AC receptacle. Test the receptacle using approved methods or connect the device to another known-good approved outlet.
Avoid assuming an internal power failure until facility power and cord connections have been verified.
Expected outcome: The device receives reliable AC power. If it starts and completes self-test normally after correcting the outlet or connection, the issue is resolved and troubleshooting can stop after final verification.
5. Inspect the External Power Cord and Connections
Inspect the accessible power cord and plug for cuts, bent contacts, looseness, discoloration, or other damage. If permitted by facility policy, compare operation with a known-good compatible power cord where applicable.
Expected outcome: External power components are secure and undamaged. A defective external power component is replaced with an approved compatible item and normal startup is restored.
6. Remove Nonessential External Accessories
Disconnect nonessential external data or communication accessories that can safely be removed without altering required device configuration. Leave required respiratory components installed as specified for normal operation.
Restart the unit using the normal operating controls.
Expected outcome: The Airvo 3 completes startup with its normal required configuration. If an external accessory is identified as the cause, replace or correct that accessory and verify operation.
7. Allow the Device to Complete Its Normal Startup Sequence
Observe the complete startup process without repeatedly interrupting it. Note where startup stops and record any message or alarm exactly as displayed.
Do not bypass self-tests or enter unauthorized service functions.
Expected outcome: Startup completes and the device reaches its normal ready state. If it repeatedly fails at the same point, proceed to escalation.
8. Perform Final Functional Verification
After correcting an external problem, configure the Airvo 3 with appropriate approved accessories and verify normal startup, display operation, alarm indication, airflow generation, and humidification readiness using facility procedures and applicable manufacturer documentation.
Expected outcome: The device consistently completes startup and performs normally. Troubleshooting can stop and the unit may be returned to service when required return-to-service checks pass.
9. Escalate an Unresolved Startup Failure
If known-good AC power, accessible connections, external accessories, and normal restart procedures have been verified but the Airvo 3 remains unresponsive or cannot complete self-test, do not proceed into unauthorized internal repair.
Expected outcome: The device is removed from service and referred for qualified bench evaluation or manufacturer-authorized service.
If the Problem Persists
Common external power, connection, accessory, and environmental causes have been ruled out. A persistent failure may involve the internal power system, battery system, electronics, software, sensors, or another service-level condition.
Remove the Airvo 3 from service, label it Out of Service, and send it for repair or bench evaluation. Evaluation should use appropriate Fisher & Paykel Healthcare documentation and approved test equipment. Internal repairs, software recovery, or configuration changes should be performed only by qualified personnel.
After repair, complete the applicable electrical safety and functional return-to-service testing before clinical use. Knowing when to stop external troubleshooting and escalate is proper troubleshooting.
Clinical Use Tip
Maintain appropriate respiratory support with another verified device before investigating any Airvo 3 that cannot reliably complete startup.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Clinical staff reported the Airvo 3 would not power on when connected for patient use."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found the AC power connection was not fully seated and verified the outlet and power cord were otherwise functional."
Resolution
What action was taken.
Example:
"Clinical Engineering secured the power connection, confirmed normal startup and self-test completion, and completed functional verification before returning the device to service."
Helpful Details to Include (If Known)
- Whether the device was completely unresponsive or stopped during startup
- Exact displayed message or alarm
- AC versus battery operation
- Outlet verification result
- Power cord and connector condition
- Evidence of liquid, impact, heat, or odor
- Accessories connected during the failure
- Results before and after correction
- Final functional status
Final Thought
Protect the patient first, then move logically from facility power and external connections toward device-level causes. Verify every correction before assuming internal failure, escalate persistent faults appropriately, and document the complaint, cause, resolution, and final device status clearly.
That is successful troubleshooting.