Mitsubishi Electric PUZ-ZM200YKA2-ET Service Manual page 62

10-5. HOW TO CHECK THE PARTS
Parts name
Disconnect the connector then measure the resistance with a tester.
Thermistor (TH3)
(At the ambient temperature 10 to 30°C)
<Liquid>
Thermistor (TH4)
<Discharge>
Thermistor (TH6) TH4, TH33
<2-phase pipe>
Thermistor (TH7)
<Ambient>
Thermistor (TH8)
<Heat sink>
Thermistor (TH33)
<Comp. Surface>
Fan motor(MF1,MF2) Refer to the next page.
Solenoid valve coil Measure the resistance between the terminals with a tester.
(At the ambient temperature 20°C)
<4-way valve>
(21S4)
Motor for compressor Measure the resistance between the terminals with a tester.
(Winding temperature 20°C)
(MC)
U
V
W
Linear expansion valve
Disconnect the connector then measure the resistance with a tester.
(LEV-A/LEV-B)
(Winding temperature 20°C)
ZM60/71
Gray
M
1
Orange
2
Red
3
Yellow
4
5
Black
ZM100-250
OCH771C
Normal
160 to 410 kΩ
TH3
TH6 4.3 to 9.6 kΩ
TH7
TH8
39 to 105 kΩ
ZM60/71
2350 ± 170 Ω
Refer to "5-2. COMPRESSOR TECHNICAL DATA".
Red - White Red - Orange
Gray - Black Gray - Red
Checkpoints
Abnormal
Open or short
Normal
ZM100–140 ZM200/250
1435 ± 150 Ω 1215 ± 122 Ω
Normal
Normal
Red - Yellow
46 ± 4 Ω
Normal
Gray - Yellow
46 ± 3 Ω
62
Abnormal
Open or short
Abnormal
Open or short
Abnormal
Red - Blue
Open or short
Abnormal
Gray - Orange
Open or short