Carrier DHMVHA Service Manual page 27

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DIAGNOSIS AND SOLUTION (CONT.)
Overload Current Protection (PC08)
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.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
PC08
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
No
No
No
Correct the connections or
No
No Replace the outdoor main PCB.
27
Stop the unit.
Clear the blockage.
Replace the compressor.
replace the wires.