How To Check The Parts - Mitsubishi Electric Mr.Slim PUHZ-P100VKA Service Manual

9-6. HOW TO CHECK THE PARTS

PUHZ-P100VKA.TH(-ET/-ER)
PUHZ-P125VKA.TH(-ET/-ER)
PUHZ-P140VKA.TH(-ET/-ER)
Parts name
Thermistor(TH3)
Disconnect the connector then measure the resistance with a tester.
<Liquid>
(At the ambient temperature 10°C to 30°C)
Thermistor (TH4)
<Discharge>
Thermistor (TH6)
TH4, TH33
<2-phase pipe>
Thermistor (TH7)
<Ambient>
Thermistor (TH8)
<Heatsink>
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 −10°C to 40°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)
Gray
M
1
Orange
2
Red
3
Yellow
4
Black 5
OCH670
PUHZ-P100YKA.TH(-ET/-ER)
PUHZ-P125YKA.TH(-ET/-ER)
PUHZ-P140YKA.TH(-ET/-ER)
Normal
160 kΩ–410 kΩ
TH3
TH6 4.3 kΩ–9.6 kΩ
TH7
TH8 39 kΩ–105kΩ
1190 to 1780 Ω
Refer to "4-2. COMPRESSOR TECHNICAL DATA".
Gray–Black Gray–Red
Check points
Abnormal
Open or short
Normal
Normal
Normal
Gray–Yellow
Gray–Orange
46 ± 3 Ω
54
Abnormal
Open or short
Abnormal
Open or short
Abnormal
Open or short