Mitsubishi Electric Mr.SERVICE PUHZ-HRP71VHA Service Manual page 55

11-6. HOW TO CHECK THE PARTS
PUHZ-HRP71VHA
PUHZ-HRP71VHA2
PUHZ-HRP71VHA2R1 PUHZ-HRP100VHA2R1 PUHZ-HRP100YHA2R1 PUHZ-HRP125YHA2R1
Parts name
Thermistor (TH3)
Disconnect the connector then measure the resistance with a tester.
<Outdoor pipe>
(At the ambient temperature 10 ~30 )
Thermistor (TH4)
<Discharge>
Thermistor (TH6)
<Outdoor
2-phase pipe>
Thermistor (TH7)
<Outdoor>
Thermistor (TH8)
<Heatsink>
Thermistor (TH32)
<Outdoor pipe>
Thermistor (TH33)
<Outdoor pipe>
Fan motor(MF1,MF2) Refer to next page.
Solenoid valve coil Measure the resistance between the terminals with a tester.
(At the ambient temperature 20 )
<Four-way valve>
(21S4)
Measure the resistance between the terminals with a tester.
Motor for compressor
(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)
PUHZ-HRP100VHA
PUHZ-HRP100VHA2
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-HRP100YHA
PUHZ-HRP100YHA2
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
55
PUHZ-HRP125YHA
PUHZ-HRP125YHA2
Abnormal
Open or short