28
11-4. TROUBLE CRITERION OF MAIN PARTS
Parts name
Figure
Check method and criterion
Outdoor fan motor
R.V. coil (21S4)
Expansion valve coil
(LEV)
Measure the resistance between terminals with a tester.
(Temperature: -10°C ~ 40°C)
WHT - BLK
BLK - RED
RED - WHT
Normal
Measure the resistance between terminals with a tester.
(Temperature : -10°C ~ 40°C)
Normal
WHT - RED
RED - ORN
YLW - BRN
BRN - BLU
Normal
37
~ 54
Measure the resistance with a tester.
(Temperature : -10°C ~ 40°C)
Measure the resistance with a tester.
Refer to 11-6. “Test point diagram and voltage”, 11-6-1. (KA25/35/50) or
11-6-2. (KA60/71) “Inverter P.C. board”, for the chart of thermistor.
Color of the lead wire
Color of the lead wire
Discharge temperature
thermistor (RT62)
Measure the resistance with a tester.
Before measurement, hold the thermistor with your hands to warm it up.
Refer to 11-6. “Test point diagram and voltage”, 11-6-1. (KA25/35/50) or
11-6-2. (KA60/71) “Inverter P.C. board”, for the chart of thermistor.
Defrost thermistor (RT61)
Fin temperature
thermistor (RT64)
29
~ 42
Measure the resistance between terminals with a tester.
(Temperature: -10°C ~ 40°C)
Compressor
U-V
U-W
V-W
Normal
W
U
V
WHT
RED BLK
W
U
V
WHT
RED BLK
Ambient temperature
thermistor (RT65)
Outdoor heat exchanger
temperature thermistor(RT68)
SUZ-KA25VA4.TH
1.36
~ 1.93
SUZ-KA35VA4.TH
1.52
~ 2.17
1.19 k
~ 1.78 k
SUZ-KA50/60VA4.TH
0.78
~ 1.11
SUZ-KA71VA4.TH
0.92
~ 1.12
SUZ-KA25/35VA4.TH
SUZ-KA50/60/71VA4.TH
12
~ 17
SUZ-KA25/35VA4.TH
LEV
WHT
RED
YLW
ORN
BLU
Measure the resistance with a tester.
(Temperature : -10°C ~ 40°C)
RED - ORN
RED - WHT
RED - BLU
RED - YLW
Normal
37
~ 54
Color of the lead wire
SUZ-KA50/60/71VA4.TH
LEV
WHT
RED
ORN
YL
W
BRN
BLU
SUZ-KA25VA4.TH SUZ-KA35VA4.TH
SUZ-KA50VA4.TH SUZ-KA60VA4.TH SUZ-KA71VA4.TH
OCH545