Mitsubishi Electric Mr.Slim PLA-SM100EA Technical & Service Manual page 23

11-4. TROUBLE CRITERION OF MAIN PARTS
SUZ-SA71VA3.TH
Parts name
Defrost thermistor (RT61)
Fin temperature
thermistor (RT64)
Ambient temperature
thermistor (RT65)
Outdoor heat exchanger
temperature thermistor(RT68)
Discharge temperature
thermistor (RT62)
Measure the resistance between terminals with a tester.
(Temperature: −10 to 40°C)
Compressor
Outdoor fan motor
R.V. coil (21S4)
Expansion valve coil
(LEV)
TCH030
SUZ-SA100VA2.TH
Check method and criterion
Measure the resistance with a tester.
Refer to "11-6. TEST POINT DIAGRAM AND VOLTAGE" for the chart of thermistor.
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" for the chart of thermistor.
SUZ-SA71VA3.TH
U-V
U-W 0.91 to 1.13 Ω
V-W
Measure the resistance between terminals with a tester.
(Temperature: −10 to 40°C)
Color of the lead wire
WHT - BLK
BLK - RED
12 to 17 Ω
RED - WHT
Measure the resistance between terminals with a tester.
(Temperature: −10 to 40°C)
Normal
1.19 to 1.78 kΩ
Measure the resistance with a tester.
(Temperature: −10 to 40°C)
Color of the lead wire
RED - ORN
RED - WHT
37 to 54 Ω
RED - BLU
RED - YLW
Normal
SUZ-SA100VA2.TH
0.83 to 1.03 Ω
Normal
Normal
23
Figure
WHT RED BLK
W
V
U
WHT RED BLK
W
V
U
WHT
LEV
ORN
RED
YLW BLU