Overload Current Protection Diagnosis And Solution - Century B-VMH36SD-1 Service Manual

9.3.7 Overload current protection diagnosis and solution (F0)
Error Code
Malfunction conditions
Possible causes
Troubleshooting:
Check the power supply.
Is it normal?
Is there any blockage?
Check the compressor
resistance values.
Refer to [Compressor Checking].
Is it normal?
Check to make sure connections
and wiring are correct.
Check the reactor.
Is it normal?
Replace the outdoor main PCB.
Service Manual - VMH 9/12/18/24 SU & VMH30/36S D Series
F0
An abnormal current rise is detected by checking the specified
current detection circuit.
Power supply problems.
●
System blockage
●
PCB faulty
●
Wiring error
●
Compressor malfunction
●
34
37
Stop the unit.
Check the power supply.
Clear the blockage
Replace the compressor
Correct the connections
or replace the wires.
Replace the reactor.