Overload Current Protection Diagnosis And Solution - Carrier 38MAQB12-1 Service Manual

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