38MBRC: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
35
PC 45 (Outdoor Unit IR Chip Drive Failure Diagnosis and Solution)
Description: When the IR chip detects its own parameter error, the LED displays the failure code when powered on.
Recommended parts to prepare:
• Inverter module PCB
Troubleshooting and repair:
PC 0L (Low ambient temperature protection)
Description: It is a protection function. When compressor is off, outdoor ambient temperature(T4) is lower than -35oC. for 10s, the air
conditioner stops and displays the failure code.
When compressor is on, the outdoor ambient temperature(T4) is lower than -40
oC.for 10s, the air conditioner stops and displays the
failure code. When outdoor ambient temperature(T4) is no lower than -32
oC.for 10s, the unit exits protection.
Power o ,then restart the unit
2 minutes later.
Replace the i nverter module
PCB.
Yes
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