69
12-4. Trouble criterion of main parts (1)
Part name
Figure
Check method and criterion
Outdoor fan motor
R.V. coil
Expansion valve coil
(LEV)
Measure the resistance between the terminals with a tester.
(Part temperature -20°C ~ 40°C)
WHT - BLK
BLK - RED
RED - WHT
Normal
Measure the resistance between the terminals with a tester.
(Part temperature -20°C ~ 40°C)
Normal
1.20 k ~ 1.55 k
WHT - RED
RED - ORN
YLW - BRN
BRN - BLU
Normal
37 ~ 54
Measure the resistance with a tester.
(Part temperature : -20°C ~ 40°C)
Measure the resistance with a tester.
Refer to 12-6. “Test point diagram and voltage”, 12-6-1. or 12-6-3.
“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 12-6. “Test point diagram and voltage”, 12-6-1. or 12-6-3.
“Inverter P.C. board”, for the chart of thermistor.
Defrost thermistor (RT61)
Fin temperature
thermistor (RT64)
31 ~ 41
Measure the resistance between the terminals with a tester.
(Part temperature -20°C ~ 40°C)
Compressor
Defrost heater
SUZ-KA·VAH
Measure the resistance with a tester.
(Part temperature -20°C ~ 40°C)
Normal
333 ~ 428
U-V
U-W
V-W
Normal
SUZ-KA35VA(H).TH
0.41 ~ 0.53
SUZ-KA25VA(H).TH
1.28 ~ 1.66
23
W
U
V
1
WHT
RED BLK
23
W
U
V
1
WHT
RED BLK
Ambient temperature
thermistor (RT65)
Outdoor heat exchanger
temperature thermistor(RT68)
(SUZ-KA25/35VA(H)R1.TH)
SUZ-KA25VA(H)R1.TH
1.36 ~ 1.93
SUZ-KA35VA(H)R1.TH
1.52 ~ 2.17
SUZ-KA25/35VA(H).TH
SUZ-KA25/35VA(H)R1.TH
29 ~ 42
SUZ-KA25/35VA(H).TH
SUZ-KA25/35VA(H)R1.TH
1.19 k ~ 1.78 k
LEV
WHT
RED
ORN
YLW
BRN
BLU
SUZ-KA25VA.TH SUZ-KA35VA.TH SUZ-KA25VAR1.TH SUZ-KA35VAR1.TH
SUZ-KA25VAH.TH SUZ-KA35VAH.TH SUZ-KA25VAHR1.TH SUZ-KA35VAHR1.TH
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