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MXZ-SM42NAMHZ Service Manual

ManualsBrandsMitsubishi ManualsCoolingOne-Way Ceiling 4-Zone H2i System - 42,000 BTU Outdoor - 9k + 12k + 12k + 12k Indoor - 22.0 SEER
51525354555657585960
60
OCH789
Check code
1102
(U2)
Compressor temperature trouble
●Diagnosis of defects
Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards.
Diagnosis Remedy
Yes
Yes
Yes
No
No
No
Continued from the previous page.
Is the voltage normal value?
Is it free from any trace of over-
heating or burning?
Is the resistance detected?
Is the resistance detected?
Check the voltage and appearance of the
outdoor controller board.
Disconnect the thermistor wiring to check
the resistance.
Disconnect the indoor LEV wiring and
check the resistance.
Replace the outdoor controller board.
Replace the thermistor.
Replace the indoor LEV.
Replace the indoor controller board.
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