When outdoor fan speed is too low or too high for a certain
period of time, the unit ceases operation and the LED displays a
failure code.
YES
Power off, then restart the unit after 2 minutes.
Is it within normal parameters?
Replace the fan motor
Does a problem remain? The unit is operating normallyNO
Shut off the power supply, Rotate
the fan by hand.
YES
Does it turn easily? Find the cause of the problem and resolve itNO
Check the wiring of fan motor.
YES
Is it improperly wired?
Ensure proper connections
Measure the voltage for
the fan motor from the PCB.
YES
Replace the outdoor main PCB
NO
Replace the DC motor driver board
(if has)
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