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Part name Check method and criterion Figure
Room temperature
thermistor(RT11)
Indoor coil thermistor
(RT12(MAIN), RT13(SUB))
Measure the resistance with a tester.
Refer to 9-7. "Test point diagram and voltage", "Indoor electronic control P.C.
board", the chart of thermistor.
Indoor fan motor(MF) Check 9-6.
.
Horizontal vane motor
(MV1)
Vertical vane motor
(MV2)
Measure the resistance between the terminals with a tester.
(Part temperature 50 ~ 86 °F)
Horizontal vane motor (MV1)
Color of the lead wire Normal
BRN - other one 240 ~ 260 Ω
Vertical vane motor (MV2)
Color of the lead wire Normal
BRN - other one 282 ~ 306 Ω
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9-5. TROUBLE CRITERION OF MAIN PARTS
MSZ-D30NA
MSZ-D36NA
MSY-D30NA
MSY-D36NA
RED
YLW
BRN
ORN
GRN
ROTOR