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Samsung Electronics
Troubleshooting
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 connector 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(˚C)
15
20
25
Temperature(˚C)
30
35
40
Resistance Value(Kohm)
8.31
6.94
5.83
Resistance Value(Kohm)
14.68
12.09
10
Others
The data tolerance
is ±3%.
8-2-3 Room Pipe sensor failure
Error Mode
LAMP
7-segment Display
Indoor unit heat exchanger temperature sensor error(open or short)
DB98_20801A(1)_1 12/24/04 10:46 AM Page 53
Summary of Contents for AS09HPA
Page 62: ...MEMO 61 Samsung Electronics ...
Page 69: ...Samsung Electronics 68 11 PCB Diagram 11 1 ASS Y MAIN PCB DB93 02482A TOP ...
Page 70: ...69 Samsung Electronics PCB Diagram BOTTOM ...
Page 74: ...73 Samsung Electronics 11 2 ASS Y MELODY PCB DB93 02809A TOP BOTTOM ...
Page 81: ...MEMO Samsung Electronics 80 ...