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Home Service & Support Troubleshooting Air Conditioner What is F4 error ...

Question: What is F4 error code?

Answer:

F4 error code on the indoor unit display panel.

 

Reason: Compressor discharging temperature protection

Causes:

 

■             Electronic expansion valve defective

■             Faulty thermistor

■             Faulty PCB

Solution: Please unplug the machine and call for service. This only can be operated by service engineers.


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