Mitsubishi Electric PUHZ-P100VHA2 Service Manual page 48

11-6. HOW TO CHECK THE PARTS
PUHZ-P100VHA2.UK
PUHZ-P125VHA2 .UK
1
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>
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)
Motor for compressor Measure the resistance between the terminals with a tester.
(Winding temperature 20:)
U
(MC)
V
W
Linear expansion valve
Disconnect the connector then measure the resistance with a tester.
(LEV-A)
(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)
For P125, 140
PUHZ-P125VHA2.UK
PUHZ-P140VHA2
Normal
TH4
160k"~410k"
TH3
TH6 4.3k"~9.6k"
TH7
TH8 39k"~105k"
P100, P125/140VHA2
1
1500±150"
P100
0.88"
Gray - Black Gray - Red
Normal
1450±150"
PUHZ-P140VHA2.UK
.UK
1
Check points
Abnormal
Open or short
Normal
P125/P140VHA2
1435±150"
Normal
P125,P140
0.53"
Normal
Gray - Yellow Gray - Orange
46±3"
Abnormal
Open or short
48
Abnormal
Open or short
Abnormal
Open or short
Abnormal
Open or short