20 minutes after the
complete unit is
powered off
Is the terminal FA for the
electronic expansion valve
connected correctly?
Connect the
wires correctly
Resistances between the first four pins
close to the terminal hole and the fifth
pin are almost the same, less than 100
ohm.
Replace the electronic
expansion valve
If the fault is eliminated?
If the fault is eliminated?
Replace the
control panel
AP1
Coolant leakage, refilling
the coolant
End
Troubleshooting
Mainly detect:
Whether the electronic expansion valve is connected well or not? Is electronic expansion valve damaged?
Is refrigerant leaked?
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