Service manual

47
1
2
3
4
5
6
M
1
2
3
4
5
6
M
Parts name
Check points
Disconnect the connector then measure the resistance using a tester.
(Surrounding temperature 10:~30:)
Disconnect the connector then measure the resistance using a tester.
(Winding temperature 20:)
Thermistor (TH3)
<Outdoor pipe>
Thermistor (TH4)
<Discharge>
Thermistor (TH6)
<Outdoor 2-phase pipe>
Thermistor (TH7)
<Outdoor>
Thermistor (TH8)
<Heat sink>
Normal
160k"~410k"
4.3k"~9.6k"
39k"~105k"
TH4
TH3
TH6
TH7
TH8
Abnormal
Open or short
Normal
Red - White Red - Orange
Brown - Yellow
Brown - Blue
Abnormal
46±4"
Measure the resistance between the terminals using a tester.
(Surrounding temperature 20
: )
Solenoid valve coil
<Four-way valve>
(21S4)
Pin number of relay
connector is different
from that motor
connector
Motor for compressor
(MC)
Linear expansion valve
( LEV(A),LEV(B) )
Linear expansion valve
( LEV )
RP4-RP6YHA only
Normal
Abnormal
Open or short
RP1.6-3V RP4-6V
Open or short
Disconnect the connector then measure the resistance using a tester.
(Winding temperature 20:)
Normal
White - Black White - Red
Gray - Yellow
Gray - Orange
Abnormal
46±3"
Open or short
Measure the resistance between the terminals using a tester.
(Surrounding temperature 20:)
Normal
1197±10"
Abnormal
Open or short
Solenoid valve coil
<Bypass valve>
(SV)
RP2.5-6 only
Measure the resistance between the terminals using a tester. (Winding temperature 20 : ) Fan motor(MF1,MF2)
Normal
RP1.6V, 2V
66.5±3.3"
RP2.5-6V
15.1±0.5"
RP4-6Y
2350±170" 1370±100"
RP1.6V, 2V
RP4-6V
RP4-6Y
0.300"~0.340"
RP2.5V, 3V
0.865"~0.895"
0.266" 1.064"
Measure the resistance between the terminals using a tester.
(Winding temperature 20
: )
Normal Abnormal
Open or short
Relay connector Abnormal
Open or short
w
Refer to the next page for how to check the contact
failure or how to measure the voltage at test point.
Red — Black
Black — White
White — Red
Red
W
V
U
W
V
U
White
Black
w
Red
Brown
Blue
Orange
Yellow
White
White
Gray
Orange
Red
Yellow
Black
11-6. HOW TO CHECK THE PARTS
PUHZ-RP1.6HA PUHZ-RP2.5VHA
1 PUHZ-RP4VHA PUHZ-RP5VHA1 PUHZ-RP4YHA
PUHZ-RP2VHA PUHZ-RP3VHA PUHZ-RP4VHA
1 PUHZ-RP6VHA PUHZ-RP5YHA
PUHZ-RP2.5VHA PUHZ-RP3VHA
1 PUHZ-RP5VHA PUHZ-RP6VHA1 PUHZ-RP6YHA
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