Discharge Temperature Sensor Error For A Fixed Scroll Compressor (Open/Short) - Samsung AVXCSH023/032/040CE Service Manual

4-3-26 Discharge Temperature Sensor error for a fixed scroll Compressor (Open/Short)

Outdoor unit display
Indoor unit display
• Refer to how to determine below
Criteria
• Fixed scroll compressor's discharge temperature sensor OPEN/SHORT defective
Cause of problem
1. How to check
Is a discharge temperature sensor
connector for a fixed outdoor scroll compressor
dislocated from the PCB?
After separating the discharge temperature
sensor connector of the fixed outdoor scroll
compressor from the PCB, measure the
resistance value between both terminals.
Does the resistance
valve greatly deviate from the
temperature table?
Restart after replacing the PCB.
Samsung Electronics
(Compressor 2, Compressor 3)
(Operation) (Timer) (Fan)
Yes
Yes
Yes
(Filter) (Defrost)
No
Restart after connecting
the connector to the PCB.
Compressor3 Compressor2
No
As it is due to a problem with the
discharge temperature sensor of the fixed
outdoor scroll compressor, replace it.
Troubleshooting
Temperature
Resistance
(KΩ)
(°F) (°C)
266 130
8.9
248 120
11.2
212 100
18.5
176 80
32
140 60
59
77 25
200
68 20
242
50 10
362
32 0
553
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