F1 is displayed and the unit may operate erratically, not reaching set temperature.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Turn off power before accessing the coil area.
Steps:
- Locate coil sensor: Remove the front cover and filters. The evaporator sensor is usually clipped to the coil tubing.
- Reattach sensor: If the sensor has fallen away from the coil, reclip it firmly to the copper tube in the original position.
- Inspect wiring: Check for pinched or cut wires leading from the sensor to the PCB. Repair or replace as needed.
If F1 persists: Replace the evaporator temperature sensor. If a new sensor does not resolve the error, the indoor PCB may be defective and require replacement by a technician.
Repair Difficulty
Required Part
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