Samsung AM032MNQDCH/AA Service Manual page 285

4-4-42 Constant Rate Compressor Discharge Temperature Sensor Error (OPEN/SHORT)
Outdoor Unit Display
Indoor Unit Display (Operation) ×(Reservation)
∙ Refer to the inspection method below.
Judgment Method
∙ Constant rate compressor discharge temperature sensor OPEN/SHORT problem
Special Cause
1. Inspection Method
Did the connector for
the outdoor constant rate compressor discharge
temperature sensor break away
from the PCB?
Separate the connector for the outdoor constant
rate compressor discharge temperature sensor from
the PCB, and measure the resistance value between
the 2 terminals.
Did the resistance value
significantly stray from the following
temperature table?
Restart operation after changing PCB.
Samsung Electronics
(Compressor 2, Compressor 3)
,
(Blast) ×(Filter) ×(Defrost)
Yes
Comp. 2
Yes
No
Restart operation after connecting
the connector to PCB
Comp. 3
Temperature (°C)
130
120
100
No
Change this part as it is the fault of
the constant rate compressor discharge
temperature sensor itself.
Troubleshooting
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
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