24
9-5. TROUBLESHOOTING CRITERION OF MAIN PARTS
MSZ-D30NA MSZ-D36NA MSY-D30NA MSY-D36NA
Part name
Check method and criterion
Figure
Room temperature
thermistor (RT11)
Indoor coil thermistor
(RT12 (MAIN), RT13
(SUB))
Measure the resistance with a multimeter.
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 multimeter.
(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
RED
YLW
BRN
ORN GRN
ROTOR
OBH501D