Samsung Electronics
3-3
Alignment and Adjustments
Description
LAMP
OPERATION
TIMER
TURBO
Indoor unit heat exchanger temperature sensor error
(open or short)
◑
◑
● :
Lamp on,
:
Lamp off,
◑ :
Lamp blink
3-1-2 Indoor Unit Heat Exchanger Temperature Sensor Error
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.
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)
Temperature(˚F)
Resistance Value(Kohm)
Temperature(˚F)
Resistance Value(Kohm)
Others
59
14.68
86
8.31
he data tolerance
is ±3%.
68
12.09
95
6.94
77
10
104
5.83
Alignment and Adjustments
26005A(2)_1.indd 3
2006-04-14 ｿﾀﾈﾄ 5:02:29
