Trouble Criterion Of Main Parts - Mitsubishi Electric MXZ-2C20NA2-U1 Service Manual

11-5. TROUBLE CRITERION OF MAIN PARTS

MXZ-2C20NA2 MXZ-3C24NA
MXZ-5C42NA MXZ-2C20NAHZ
MXZ-3C24NA2 MXZ-3C30NA2
MXZ-2C20NAHZ2 MXZ-3C24NAHZ2 MXZ-3C30NAHZ2
Part name
Defrost thermistor (RT61)
Fin temperature
thermistor (RT64)
Ambient temperature
Outdoor heat exchanger
temperature thermistor (RT68)
Discharge temperature
thermistor (RT62)
Compressor
W
RED
V
U
WHT BLK
Outdoor fan motor
R.V. coil
MXZ-5C42NA
MXZ-2C20NAHZ
MXZ-3C24NAHZ
MXZ-3C30NAHZ
MXZ-5C42NA2
MXZ-2C20NAHZ2
MXZ-3C24NAHZ2
MXZ-3C30NAHZ2
Linear expansion valve
WHT
RED LEV
ORN
YLW BLU
High pressure switch
(HPS)
Defrost heater
MXZ-2C20NAHZ
MXZ-3C24NAHZ
MXZ-3C30NAHZ
MXZ-2C20NAHZ2
MXZ-3C24NAHZ2
MXZ-3C30NAHZ2
OBH702G
MXZ-3C30NA
MXZ-3C24NAHZ
MXZ-4C36NA2
Measure the resistance with a tester.
Measure the resistance with a tester.
Measure the resistance between terminals using a tester.
Normal (Each phase)
MXZ-3C24NA
MXZ-2C20NA2
MXZ-3C24NA2 MXZ-3C30NA2 MXZ-4C36NA2
Measure the resistance between terminals using a tester.
Normal (Each phase)
MXZ-5C42NA MXZ-2C20NAHZ
MXZ-5C42NA2 MXZ-2C20NAHZ2 MXZ-3C24NAHZ2 MXZ-3C30NAHZ2
Normal (Each phase)
MXZ-3C24NA
MXZ-2C20NA2
MXZ-3C24NA2 MXZ-3C30NA2 MXZ-4C36NA2
Normal (Each phase)
MXZ-5C42NA MXZ-2C20NAHZ
MXZ-5C42NA2 MXZ-2C20NAHZ2 MXZ-3C24NAHZ2 MXZ-3C30NAHZ2
Normal
MXZ-5C42NA MXZ-5C42NA2
MXZ-2C20NAHZ MXZ-2C20NAHZ2
MXZ-3C24NAHZ MXZ-3C24NAHZ2
MXZ-3C30NAHZ MXZ-3C30NAHZ2
Color of lead wire
WHT RED
RED ORN
YLW RED
RED BLU
Pressure
22 PSIG
HPS
+ 7
PSIG
Normal
MXZ-4C36NA
MXZ-3C30NAHZ
MXZ-5C42NA2
Check method and criterion
MXZ-3C30NA MXZ-4C36NA
MXZ-3C24NAHZ MXZ-3C30NAHZ
MXZ-3C30NA MXZ-4C36NA
MXZ-3C24NAHZ MXZ-3C30NAHZ
Normal
Normal
Close
Open
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