Mitsubishi Electric PUHZ-W112VHA Service Manual page 26

8-4. HOW TO CHECK THE PARTS
PUHZ-W112VHA
PUHZ-W112VHA-BS
PUHZ-W112VHAR1
PUHZ-W112VHAR1-BS
Parts name
Thermistor (TH3) <Liquid>
Thermistor (TH4) <Discharge>
Thermistor (TH6) <Plate Hex liquid>
Thermistor (TH7) <Ambient>
Thermistor (TH8) <Heat sink>
Thermistor (TH32) <Inlet water>
Thermistor (TH33) <Suction>
Thermistor (TH34) <Comp. surface>
Fan motor (MF1)
Solenoid valve coil
<4-way valve>
(21S4)
Compressor
(MC)
U
V
W
Linear expansion valve
(LEV-A) (LEV-B)
Gray
M
1
Orange
2
Red
3
Yellow 4
Black
5
OCH562D
PUHZ-W112VHAR2
PUHZ-W112VHAR2-BS
PUHZ-W112VHAR3
PUHZ-W112VHAR3-BS
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature of 10 to 30°C)
TH4
TH34
TH3
TH6
TH7
TH33
TH32
TH8
Refer to the next page.
Measure the resistance between the terminals with a tester.
(At the ambient temperature of 20°C)
Normal
1435 ± 150 Ω
Measure the resistance between the terminals with a tester.
(Winding temperature 20°C)
Normal
0.188 Ω
Disconnect the connector then measure the resistance with a tester.
(Winding temperature 20°C)
Gray - Black Gray - Red
26
Checkpoints
Normal Abnormal
160 to 410 kΩ
Open or short
4.3 to 9.6 kΩ
4.4 to 9.8 kΩ
39 to 105 kΩ
Abnormal
Open or short
Abnormal
Open or short
Normal
Gray - Yellow Gray - Orange
46 ± 3Ω
Abnormal
Open or short