How To Check The Parts; Solenoid Valve Coil; Motor For Compressor; Linear Expansion Valve - Mitsubishi Electric PUHZ-HRP71VHA Service Manual

11-6. HOW TO CHECK THE PARTS

PUHZ-HRP71VHA
PUHZ-HRP100VHA
PUHZ-HRP100YHA
PUHZ-HRP125YHA
Parts name
Thermistor (TH3)
Disconnect the connector then measure the resistance with a tester.
<Liquid>
(At the ambient temperature 10 ~30 )
Thermistor (TH4)
<Discharge>
Thermistor (TH6)
<Outdoor 2-phase pipe>
Thermistor (TH7)
<Ambient>
Thermistor (TH8)
<Heatsink>
Thermistor (TH32)
<Suction>
Thermistor (TH33)
<Ref. check>
Fan motor Refer to next page.
(MF1,MF2)

Solenoid valve coil

Measure the resistance between the terminals with a tester.
(At the ambient temperature 20 )
<Four-way valve>
(21S4)

Motor for compressor

Measure the resistance between the terminals with a tester.
(Winding temperature 20 )
(MC)
U
V
W

Linear expansion valve

Disconnect the connector then measure the resistance with a tester.
(LEV-A/LEV-B/LEV-C)
(Winding temperature 20 )
Gray
M
1
2
Orange
3
Red
4
Yellow
5
Black 6
Measure the resistance between the terminals with a tester.
Solenoid valve coil
(At the ambient temperature 20 )
<Bypass valve>
(SV)
OCH425F
PUHZ-HRP71VHA2
PUHZ-HRP100VHA2
PUHZ-HRP100YHA2
PUHZ-HRP125YHA2
Normal
TH4 160k ~410k
TH3
TH6
TH7
4.3k ~9.6k
TH32
TH33
TH8 39k ~105k
Normal
1435 150
Normal
HRP71, 100V HRP100, 125Y
0.188 0.302
Gray - Black Gray - Red
Normal
1197 10
PUHZ-HRP71VHA2R1
PUHZ-HRP100VHA2R1
PUHZ-HRP100YHA2R1
PUHZ-HRP125YHA2R1
Check points
Abnormal
Open or short
Abnormal
Open or short
Abnormal
Open or short
Normal
Gray - Yellow Gray - Orange
46 3
Abnormal
Open or short
62
PUHZ-HRP100VHA2R2
Abnormal
Open or short