M-Series MSZ-FH Technical & Service Manual

25
9-5. TROUBLE CRITERION OF MAIN PARTS
MSZ-FH06NA MSZ-FH09NA MSZ-FH12NA MSZ-FH15NA MSZ-FH18NA MSZ-FH18NA2
Part name Check method and criterion Figure
Room temperature
thermistor (RT11)
Indoor coil thermistor
(RT12, RT13)
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.
Indoor fan motor (MF)
Check 9-6. "Check of indoor fan motor".
Vane motor (MV1)
(HORIZONTAL)
Measure the resistance between the terminals with a tester.
(Temperature: 50 - 86°F (10 - 30°C))
Color of the lead wire Normal
RED - SKY
262
- 328 Ω
Vane motor (MV2)
(VERTICAL)
Measure the resistance between the terminals with a tester.
(Temperature: 50 - 86°F (10 - 30°C))
Color of the lead wire Normal
RED - SKY
219
- 273 Ω
i-see SENSOR MOTOR
(MT)
Measure the resistance between the terminals with a tester.
(Temperature: 50 - 86°F (10 - 30°C))
Color of the lead wire Normal
RED - BLK
262
- 328 Ω
SKY
SKY
RED
SKY
SKY
ROTOR
SKY
SKY
RED
SKY
SKY
ROTOR
BLK
BLK
RED
BLK
BLK
ROTOR
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