Samsung AM032MNQDCH/AA Service Manual page 284

Troubleshooting
4-4-41 Digital Compressor Discharge Temperature Sensor Error (OPEN/SHORT)
Outdoor Unit Display
Indoor Unit Display (Operation) ×(Reservation)
∙ Refer to the inspection method below.
Judgment Method
∙ Digital compressor discharge temperature sensor OPEN/SHORT problem.
Special Cause
1. Inspection Method
Did the connector for the
outdoor digital compressor discharge temperature
sensor break away from the PCB?
Separate the connector for the outdoor unit
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.
4-84
(Blast) ×(Filter) ×(Defrost)
Yes
Resistance value measure part
Yes
No
Restart operation after connecting
the connector to PCB
Temperature (°C)
130
120
100
80
60
25
20
10
0
No
Change this part as it is the fault of
the discharge temperature sensor itself.
Resistance (KΩ)
8.9
11.2
18.5
32.0
59.0
200.0
242.0
362.0
553.0
Samsung Electronics