Samsung AM032MNQDCH/AA Service Manual page 286

Troubleshooting
4-4-43 Compressor Discharge or Top 1/2 Temperature sensor error
Outdoor unit display
Indoorunit display (Operation) ×(Reservation)
Judgment Method ∙ Refer to the judgment method below.
Cause of problem ∙ Compressor Discharge or Top Temperature sensor defective. (Open/Short)
1. Cause of problem
Did the Compressor
Discharge or Top Temperature sensor connector
break away from the PCB?
After separating the Compressor Discharge or
Top Temperature sensor connector from the PCB,
measure the resistance value between
the two terminals.
Did the resistance
value significantly stray from the following
temperature table?
Restart operation after replace the PCB
4-86
(Compressor 1 Discharge)
(Compressor 1 Top)
(Blast) ×(Filter) ×(Defrost)
Yes
Resistance value
measure part
TOP1
Yes
(Compressor 2 Discharge)
(Compressor 2 Top)
No
Restart operation after connecting
the connector to PCB
Resistance value
measure part
Temperature (°C)
130
120
100
TOP2
No
Replace this part as it is the defective of the
Compressor Discharge or
Top Temperature sensor itself.
TOP1
TOP2
Resistance (KΩ)
8.9
11.2
18.5
80 32.0
60 59.0
25 200.0
20 242.0
10 362.0
0 553.0
Samsung Electronics