MrCool DIY E Star Series Installation & Owner's Manual page 58

10.13 Error Code: PC 08 (Overload current protection diagnosis and solution)
Description: An abnormal current rise is detected by checking the specified current detection circuit.
Recommended parts to prepare:
• Outdoor PCB
• Connection wires
• Compressor
Troubleshooting and repair:
Check the power supply.
Is it in working order?
Check the system for blockages.
Check the compressor resistance values.
Are they within acceptable
Check the connections and wires.
Are they properly connected?
Check the reactor.
Is it in working order?
Replace the outdoor unit.
Note: For certain models, outdoor PCB could not be removed separately. In this case, the outdoor
electric control box should be replaced as a whole.
The error codes and descriptions are for reference only. If your system displays any of
these codes contact a qualified technician to investigate the matter further.
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NO
YES
Do any exist? YES
NO
parameters?
YES
YES
NO
YES
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Stop the unit. .
Clear the blockage.
NO Replace the compressor.
Ensure proper connections or
NO
replace the wires.
Replace outdoor PCB.