27
9-5. TROUBLE CRITERION OF MAIN PARTS
Part name
Check method and criterion
Figure
MS-CP13/18/24VA
Room temperature
thermistor (RT11)
Indoor coil thermistor
(RT12)
Measure the resistance with a tester.
Refer to 9-7. "Test point diagram and voltage", 1. "Indoor electronic control
P.C. board" or 3. "Indoor electronic control P.C. board, Indoor terminal P.C.
board, Power monitor receiver SW P.C. board", for the chart of thermistor.
MS-CP30VA
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" for the chart of thermistor.
MS-CP13/18/24/30VA
Indoor fan motor (MF)
Check 9-6. "Check of indoor fan motor".
MS-CP13VA
Horizontal vane motor
(MV)
Measure the resistance between the terminals with a tester.
(Temperature: 10 - 30°C)
Color of the lead wire
Normal
RED - BLU
223 Ω ~ 268 Ω
MS-CP18/24VA
Horizontal vane motor
(MV1)
Vertical vane motor
(MV2)
Measure the resistance between the terminals with a tester.
(Temperature: 10 - 30°C)
Color of the lead wire
Normal
Horizontal vane motor (MV1)
RED - BLK
313 ~ 375 Ω
Vertical vane motor (MV2)
RED - BLK
268 ~ 322 Ω
MS-CP30VA
Horizontal vane motor
(MV1)
Vertical vane motor
(MV2, MV3)
Measure the resistance between the terminals with a tester.
(Temperature: 10 - 30°C)
Color of the lead wire
Normal
Horizontal vane motor (MV1)
RED - SKY*
240 - 260 Ω
Vertical vane motor (MV2, MV3)
282 - 306
Ω
*SKY = SKY BLUE
BLK
BLK
RED
BLK
BLK
ROTOR
BLU
BLU
RED
BLU BLU
ROTOR
SKY
SKY
RED
SKY SKY
ROTOR
OBH782A
