Pc0L Low Temperature Protection Of The Outdoor Unit; Pc45 Outdoor Unit Ir Chip Drive Failure - Carrier 38MBRC Series Service Manual

38MBRC: Service Manual
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:
Power off ,then restart the unit
2 minutes later.
Yes
Replace the i nverter module
PCB.
PC 0L (Low ambient temperature protection)
Description: It is a protection function. When compressor is off, outdoor ambient temperature(T4) is lower than -35 C. for 10s, the air
o
conditioner stops and displays the failure code.
When compressor is on, the outdoor ambient temperature(T4) is lower than -40 C.for 10s, the air conditioner stops and displays the
o
failure code. When outdoor ambient temperature(T4) is no lower than -32 C.for 10s, the unit exits protection.
o
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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