Mitsubishi Electric Mr. SLIM MSZ-FA25VA Technical Manual página 333

4. Trouble criterion of main parts (1)
SUZ-KA25VA.TH
SUZ-KA25VAH.TH SUZ-KA35VAH.TH
Part name
Defrost thermistor
(RT61)
Ambient temperature
thermistor(RT65)
Discharge temperature
thermistor(RT62)
Fin temperature
thermistor(RT64)
Compressor(MC)
Outdoor fan motor(MF)
R.V. coil(21S4)
LEV(Expansion valve coil)
Defrost heater(H)
SUZ-KA35VA.TH
Check method and criterion
Measure the resistance with a tester. (Part temperature –10˚C ~ 40˚C)
Normal
5 k ~ 55 k
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
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
30 k ~ 180 k
Measure the resistance between the terminals with a tester.
(Part temperature –20˚C ~ 40˚C)
SUZ-KA25VA
SUZ-KA25VAH
U-V
1.28 ~ 1.66
U-W
V-W
Measure the resistance between the terminals with a tester.
(Part temperature –20˚C ~ 40˚C)
Color of the lead wire
WHT – BLK
BLK – RED
RED – WHT
Measure the resistance between the terminals with a tester.
(Part temperature –20˚C ~ 40˚C)
Normal
1.20 k ~ 1.55 k
Measure the resistance with a tester.
(Part temperature : –20˚C ~ 40˚C)
Color of the lead wire
WHT – RED
RED – ORN
YLW – BRN
BRN – BLU
Measure the resistance with a tester.
(Part temperature -20˚C ~ 40˚C)
Normal
333 ~ 428
Abnormal
Open or short-circuit
Abnormal
Open or short-circuit
Abnormal
Open or short-circuit
Normal
SUZ-KA35VA Abnormal
SUZ-KA35VAH
Open or
0.41 ~ 0.53
short-circuit
Normal Abnormal
31 ~ 41
Open or
31 ~ 41
short-circuit
31 ~ 41
Abnormal
Open or short-circuit
Normal Abnormal
Open or
38 ~ 50
short-circuit
Abnormal
Open or short-circuit
Resolución de averías
Figure
WHT
RED BLK
2 3
V
WHT
RED BLK
2 3
V
6
WHT
1
RED LEV
4
ORN
1
W
U
1
W
U
333