SG-38MHRC-01 Specifications subject to change without notice. 39
DIAGNOSIS AND SOLUTION (CONT)
Overload current protection diagnosis and solution (F0)
Description: An abnormal current rise is detected by checking the specified current detection circuit.
Possible causes:
• Power supply problems
• System blockage
• Faulty PCB
• 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 block.
Yes
No Clear the blockage.
Check the compressor’s
resistance values.
Yes
No Replace the compressor.
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