Mitsubishi Electric EHST20C-VM6HB Service Manual page 43

11-4. HOW TO CHECK THE PARTS
PUHZ-SW75VHA.UK
PUHZ-SW75VHA-BS.UK
PUHZ-SW100VHA.UK
PUHZ-SW100VHA-BS.UK PUHZ-SW100VHAR3-BS.UK
PUHZ-SW100YHA.UK
PUHZ-SW100YHA-BS.UK PUHZ-SW100YHAR1-BS.UK
PUHZ-SW120VHA.UK
PUHZ-SW120VHA-BS.UK PUHZ-SW120VHAR3-BS.UK
PUHZ-SW120YHA.UK
PUHZ-SW120YHA-BS.UK PUHZ-SW120YHAR1-BS.UK
Parts name
Thermistor (TH3)
Disconnect the connector then measure the resistance with a tester.
<Liquid>
(At the ambient temperature 10 to 30:)
Thermistor (TH4)
<Discharge>
Thermistor (TH6)
<2-phase pipe>
Thermistor (TH7)
<Ambient>
Thermistor (TH8)
<Heat sink>
(SW75V, SW100/120Y)
Thermistor (TH34)
<Comp. surface>
Fan motor Refer to the next page.
(MF1,MF2)
Solenoid valve coil Measure the resistance between the terminals with a tester.
(At the ambient temperature 20:)
<4-way valve>
(21S4)
Motor for compressor Measure the resistance between the terminals with a tester.
(Winding temperature 20:)
(MC)
U
SW75V (R1/R2/R3)
V
W
Linear expansion valve
Disconnect the connector then measure the resistance with a tester.
(LEV-A/LEV-B)
(Winding temperature 20:)
Gray
1
M
2
Orange
3
Red
4
Yellow
Black 5
OCH533D
PUHZ-SW75VHAR3.UK
PUHZ-SW75VHAR3-BS.UK
PUHZ-SW100VHAR3.UK
PUHZ-SW100YHAR1.UK
PUHZ-SW120VHAR3.UK
PUHZ-SW120YHAR1.UK
Normal
TH4
160 to 410 k"
TH34
TH3
4.3 to 9.6 k"
TH6
TH7
39 to 105 k"
TH8
Normal
1435i150 "
SW75VR4
0.95 "
0.88 "
Gray - Black Gray - Red
PUHZ-SW75VHAR4.UK
PUHZ-SW75VHAR4-BS.UK
PUHZ-SW100VHAR4.UK
PUHZ-SW100VHAR4-BS.UK
PUHZ-SW100YHAR3.UK
PUHZ-SW100YHAR3-BS.UK
PUHZ-SW120VHAR4.UK
PUHZ-SW120VHAR4-BS.UK
PUHZ-SW120YHAR3.UK
PUHZ-SW120YHAR3-BS.UK
Check points
Abnormal
Open or short
Abnormal
Open or short
Normal
SW100/120V
0.19 "
Normal
Gray - Yellow
46i3 "
43
PUHZ-SW100YHAR4.UK
PUHZ-SW100YHAR4-BS.UK
PUHZ-SW120YHAR4.UK
PUHZ-SW120YHAR4-BS.UK
Abnormal
SW100/120Y
Open or short
0.30 "
Abnormal
Gray - Orange
Open or short