Samsung SH18BW6 Service Manual page 14

3-1-2 Indoor Unit Heat Exchanger Temperature Sensor Error
Indoor unit heat exchanger temperature sensor error
(open or short)
1. Check the assembly condition of the sensor connector(CN43) on the indoor unit Main PCB and if not assembled, reassemble the
connector accurately.
2. Detach the room pipe sensor connector(CN43) and check the resistance between Pin #3 and #4.
Temperature(˚F)
59
68
77
If the above data is not met, replace the room pipe sensor.
3. Assemble the room pipe sensor to PCB, plug in, and check the voltage of connector 3 and 4. If the resistance is below 0.5V or over 4.9V,
replace the indoor Main PCB. (short or disconnected in the PCB board)
Samsung Electronics
26005A(2)_1.indd 3
Description
Resistance Value(Kohm)
14.68
12.09
10
LAMP
OPERATION TIMER
Lamp on,
Temperature(˚F) Resistance Value(Kohm)
86 8.31
95 6.94
104 5.83
Alignment and Adjustments Alignment and Adjustments
TURBO
Lamp off, Lamp blink
Others
he data tolerance
is ±3%.
3-3
2006-04-14 ｿﾀﾈﾄ 5:02:29