SG-619AHB-01: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
25
DIAGNOSIS AND SOLUTION (CONT)
Overload current protection diagnosis and solution (F0)
Malfunction Decision Conditions
An abnormal current rise is detected by checking the specified current detection circuit.
Possible Causes:
• Power supply problems
• System blockage
• PCB faulty
• Wiring mistake
• Compressor malfunction
Troubleshooting
Check the power supply.
Check the connection and the 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.
