34
OCH748
1
2
3
4
5
M
Gray
Orange
Red
Yellow
Black
Parts name
Checkpoints
Disconnect the connector then measure the resistance with a multimeter.
(At the ambient temperature of 10 to 30°C)
TH3: Liquid pipe temp.
TH4: Discharge temp.
TH6: 2-phase pipe temp.
TH7: Ambient temp.
TH8: Heat sink temp.
TH32: Suction pipe temp.
TH34: Plate Hex liquid pipe temp.
Normal
160 to 410 k
Ω
4.3 to 9.6 k
Ω
39 to 105 k
Ω
TH4
TH33
TH3
TH6
TH7
TH34
TH8
Abnormal
Open or short
Measure the resistance between the terminals with a multimeter.
(At the ambient temperature of 20°C)
Solenoid valve coil
<4-way valve>
(21S4)
Compressor
(MC)
Normal
Abnormal
Open or short
Refer to the next page.
Fan motor (MF1)
1725 ± 172.5
Ω
0.302
Ω
HWM140Y
HWM140V
0.188
Ω
Measure the resistance between the terminals with a multimeter.
(Winding temperature 20°C)
Normal
Abnormal
Open or short
W
V
U
Linear expansion valve
(LEV-A) (LEV-B) (LEV-C)
Disconnect the connector then measure the resistance with a multimeter.
(Winding temperature 20°C)
Normal
Gray - Black
Gray - Red
Gray - Yellow Gray - Orange
Abnormal
46 ± 3
Ω
Open or short
9-5. HOW TO CHECK THE PARTS
PUZ-HWM140VHA(-BS) PUZ-HWM140YHA(-BS)
