Mitsubishi Electric QUHZ-W40VA, Руководство по обслуживанию

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GHH15010
18
1
2
3
4
5
6
M
red
blue
orange
yellow
white
Parts name Check points
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature of 10 to 30 °C)
TH1 : Discharge temp.
TH2 : Defrost temp.
TH3 : Ambient temp.
TH4 : Hot water temp.
Normal
WRNȍ
7.5 to 21 k
ȍ
TH1
TH4
TH2
TH3
Abnormal
Open or short
Open or short
Measure the resistance between the contacts of CN932 with a tester.
(At the ambient temperature of 20
°C)
Compressor
(MC)
Normal
Abnormal
Open or short
Disconnect the connector then measure the resistance with a tester.
Normal
Short
Abnormal
Open
High pressure switch
(HPS)
Fan motor (MF)
37.0 ± 1.33
ȍ
Normal
Abnormal
Open or short 12.8 ± 0.07
ȍ
Measure the resistance between the terminals with a tester.
(At the ambient temperature of 20°C)
W
V
U
Linear expansion valve
(LEV)
Disconnect the connector then measure the resistance with a tester.
(Winding temperature 20°C)
Normal
red - blue red - orange
red - yellow red - white
Abnormal
46 ± 4
Ÿ
Open or short
7-4. HOW TO CHECK THE PARTS
1
2
3