Mitsubishi PUMY-P60NKMU Technical & Service Manual page 35

Check code
1102
●Diagnosis of defectives
Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards.
Continued from the previous page
Disconnect the thermistor wiring to check
the resistance.
Is there a resistance detected?
Check the voltage and appearance of the
outdoor controller board.
Is the voltage normal value?
Is it free from any trace of over-
heating or burning?
Disconnect the indoor LEV wiring and
check the resistance.
Is there a resistamce detected?
OCH502C
Compressor temperature trouble
Diagnosis
No
Yes
No
Yes
No
Yes
Replace the thermistor.
Replace the outdoor controller board.
Replace the indoor LEV.
Replace the indoor controller board.
35
Chart 2 of 2
Remedy