Mitsubishi Electric PUHZ-W85VAA Service Manual page 29

9-4. HOW TO CHECK THE PARTS
PUHZ-W85VAA.UK
PUHZ-W85YAA.UK
Parts name
Thermistor (TH3)
<Liquid>
Thermistor (TH4)
<Discharge>
Thermistor (TH6)
<Plate hex liquid>
Thermistor (TH7)
<Ambient>
Thermistor (TH8)
<Heat sink>
Thermistor (TH33)
<Comp. surface>
Thermistor (TH34)
<Inlet water>
Fan motor
(MF1)
Solenoid valve coil
<4-way valve>
(21S4)
Motor for compressor
(MC)
U
V
W
Linear expansion valve
(LEV-A/LEV-B)
Gray
M 1
Orange
2
Red
3
Yellow
4
Black
5
OCH681
PUHZ-W112VAA.UK
PUHZ-W112YAA.UK
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature 10 to 30:)
Normal
TH4
160 to 410 k"
TH33
TH3
TH6
4.3 to 9.6 k"
TH7
TH34
39 to 105 k"
TH8
Refer to the next page.
Measure the resistance between the terminals with a tester.
(At the ambient temperature 20:)
Normal
1435 i 150 "
Measure the resistance between the terminals with a tester.
(Winding temperature 20:)
W85VAA W85YAA
0.95 1.65
Disconnect the connector then measure the resistance with a tester.
(Winding temperature 20:)
Gray - Black Gray - Red
Check points
Abnormal
Open or short
Abnormal
Open or short
W112VAA
0.74
Normal
Gray - Yellow
46 ± 3"
29
W112YAA Abnormal
0.94 Open or short
Abnormal
Gray - Orange
Open or short