Service manual

8-5. TROUBLE CRITERION OF MAIN PARTS

MS-A09WA MS-A12WA

Part name Check method and criterion Figure

Room temperature

thermistor

(RT11)

Measure the resistance with a tester. (Part temperature 50 ~ 86°F)

Refer to 8-7. "Test point diagram and voltage", the chart of thermistor.

Indoor coil thermistor

(RT12)

Indoor fan motor

(MF)

Check 8-6.

Horizontal vane motor

(MV)

Measure the resistance between the terminals with a tester.

(Part temperature 50 ~ 86°F)

Color of the lead wire Normal

BRN - other one 235 ~ 255 Ω

RED

YLW

BRN

ORN

GRN

ROTOR