Mitsubishi Electric MSZ-FH09NA Service Manualce Manual page 25

9-5. TROUBLE CRITERION OF MAIN PARTS
MSZ-FH09NA MSZ-FH12NA MSZ-FH15NA
Part name
Room temperature
thermistor (RT11)
Indoor coil thermistor
(RT12, RT13)
Indoor fan motor (MF)
Vane motor (MV1)
(HORIZONTAL)
Vane motor (MV2)
(VERTICAL)
i-see SENSOR MOTOR
(MT)
OBH683B
Check method and criterion
Measure the resistance with a tester.
Refer to 9-7. "Test point diagram and voltage", "Indoor electronic control P.C.
board", for the chart of thermistor.
Check 9-6. "Check of indoor fan motor".
Measure the resistance between the terminals with a tester.
(Temperature: 50 ~ 86°F (10 ~ 30°C))
Color of the lead wire
RED - SKY
Measure the resistance between the terminals with a tester.
(Temperature: 50 ~ 86°F (10 ~ 30°C))
Color of the lead wire
RED - SKY
Measure the resistance between the terminals with a tester.
(Temperature: 50 ~ 86°F (10 ~ 30°C))
Color of the lead wire
RED - BLK
Normal
262 ~ 328 Ω
Normal
219 ~ 273 Ω
Normal
262 ~ 328 Ω
25
Figure
SKY
ROTOR
SKY
RED
SKY SKY
SKY
ROTOR
SKY
RED
SKY SKY
BLK
ROTOR
BLK
RED
BLK BLK