Table of Contents
Advertisement
38MGRBQ: Service Manual
Outdoor compressor lack phase protection (PC43)
compressor connecting line.
Outdoor unit IR chip drive failure (PC45)
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Power off,then restart the unit
2 minutes later.Is it still
displaying the error code?
Yes
Check both ends of the
Are the connections good?
Yes
Check whether the three-
phase resistance of the
compressor is symmetrical
Yes
Check the compressor three-
phase output for obvious
open circuit
Yes
Problem solved
Power off,then restart the unit
Replace the inverter module
The unit operates
No
Correct the connections
No
Replace the compressor
No
Replace the main PCB
No
2 minutes later.
Yes
PCB.
71
normally
Advertisement
Table of Contents
