Carrier 42NQV009E Service Manual page 67

10-8-3. Indoor unit (Other parts)
No. Part name
Room temp. (TA) sensor
1
Heat exchanger (TC) sensor
Remote controller
2
Louver motor
3
MP24ZT
ndoor fan motor
4 I
Checking procedure
Disconnect the connector and measure the resistance value with
tester. (Normal temp.)
Temperature
Sensor
TA, TC (kΩ)
To item of How to judge whether remote controller is good or bad of
the Judgement of trouble by symptom.
Measure the resistance value of each winding coil by using the
tester. (Under normal temp. 25°C)
1
White
Yellow
2
Yellow
3
Yellow
4
Yellow
5
Since judgement of AC motor is difficult on the single motor, refer to
10-5-1. (3).
– 66 –
FILE NO. SVM-07018
10°C 20°C 25°C
20.7 12.6 10.0
Position Resistance value
1 to 2
1 to 4
1 to 3
1 to 5
30°C 40°C
7.9 4.5
380 ± 7Ω