H7
Airwell
Outdoor Fan Motor Feedback Fault
Indoor unit displays H7; outdoor fan may not run correctly; system may overheat.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Defective DC outdoor fan motor, Faulty Hall sensor, Loose or corroded fan connector, Outdoor PCB fan driver failure
How to Fix / Troubleshooting
Safety: Isolate power at the breaker. Outdoor fan blades are sharp.
Steps:
- 1. Inspect fan area: Remove the outdoor panel and check for debris blocking the fan.
- 2. Check wiring: Locate the fan motor connector on the PCB. Reseat it and inspect for corrosion or burning.
- 3. Manual spin: Rotate the fan blade by hand. If stiff, the motor bearings may be failing.
- 4. Replace fan motor: Install a new Airwell outdoor DC fan motor if the existing one is seized or not starting.
- 5. PCB diagnosis: If a new motor does not resolve H7, the outdoor PCB fan driver is likely faulty and needs replacement.
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Repair Difficulty
Hard
4/5
Required Part
Outdoor DC Fan Motor
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