50
12-2-2. Trouble criterion of main parts (1)
WHT – RED
RED – ORN
YLW – BRN
BRN – BLU
Abnormal
Open or
short-circuit
Normal
39
"
~ 50
"
Part name
Figure
Check method and criterion
Outdoor fan motor (MF)
INNER FUSE
152
i
:
CUT OFF
0
5
R.V. coil (21S4)
Expansion valve (LEV)
Measure the resistance between the terminals with a tester.
(Part temperature –15˚C ~ 40˚C)
WHT – BLK
BLK – RED
Abnormal
Open or
short-circuit
Normal
Measure the resistance between the terminals with a tester.
(Part temperature –15˚C ~ 40˚C)
Normal
1.90 k
"
~ 2.38 k
"
Abnormal
Open or short-circuit
Measure the resistance with a tester.
(Part temperature : –15˚C ~ 40˚C)
Measure the resistance with a tester. (Part temperature –15˚C ~ 40˚C)
Color of lead wire
Color of lead wire
Discharge temperature
thermistor (RT62)
Measure the resistance with a tester.
Before measurement, hold the thermistor with your hands to warm it up.
(Part temperature 0˚C ~ 40˚C)
Normal
150 k
"
~ 600 k
"
30 k
"
~ 180 k
"
Abnormal
Open or short-circuit
Normal
5 k
"
~ 65 k
"
Abnormal
Open or short-circuit
Defrost thermistor
(RT61)
Fin temperature
thermistor (RT64)
Measure the resistance with a tester.
Before measurement, hold the thermistor with your hands to warm it up.
(Part temperature 0˚C ~ 40˚C)
Normal
Abnormal
Open or short-circuit
Ambient temperature
thermistor (RT65)
LEV
WHT
6
RED
1
ORN
4
YL
W
5
BRN
2
BLU
3
WHT
RED
BLK
299
"
~ 374
"
242
"
~ 304
"
Measure the resistance between the terminals with a tester.
(Part temperature –15˚C ~ 40˚C)
Compressor (MC)
U-V
U-W
V-W
Abnormal
Open or
short-circuit
Normal
0.42
"
~ 0.53
"
1.31
"
~ 1.66
"
SUZ-A12VR.TH
SUZ-A09VR.TH
2
3
W
U
V
1
WHT
RED BLK
FUSE
SUZ-A09VR.TH
SUZ-A12VR.TH
OC304A --2qxp 04.6.29 8:34 AM Page 50