Carrier 38MAQB12-1 - Overload Current Protection Diagnosis and Solution

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DIAGNOSIS AND SOLUTION (CONT)
Overload current protection diagnosis and solution (F0)
Error Code F0
Malfunction decision conditions An abnormal current rise is detected by checking the specified current detection circuit.
Supposed causes
·Power supply problems
·System blockage
·PCB faulty
·Wiring mistake
·Compressor malfunction
Troubleshooting
Check the power supply
Check the connections and
wires
Stop the unit
No
Yes
No
Correct the connections or
replace the wires.
Yes
Replace the outdoor unit
Yes
Check the reactor
No
Replace outdoor main PCB
Check for system blockage
Yes
No Clear the blockage
Check the compressor
resistance values
Yes
No
Replace the compressor