Pc 08 (Overload Current Protection Diagnosis And Solution) - MrCool DIY E Star Series Troubleshooting Manual

7.8

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 system for blockages .
Check the compressor resistance values
Are they within acceptable
Check the connections and wires .
Are they properly connected ?
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.
Check the power supply .
Is it in working order?
YES
Do any exist?
No
.
parameters?
YES
YES
Check the reactor.
Is it in working order?
YES
Replace the outdoor unit .
NO Stop the unit.
Yes Clear the blockage .
NO Replace the compressor .
Ensure proper connections or
NO
replace the wires .
NO Replace outdoor PCB .
Troubleshooting 28