Suction Temperature Sensor Error (Open/Short) - Samsung DVM Series Service Manual

8
Troubleshooting
8-2-17. Suction temperature sensor error (open / short)
Outdoor unit display
Indoor unit display
Judgment method
Causes
Is outdoor suction temperature
sensor connector not
departed from PCB?
Yes
Separate the outdoor suction temperature sensor
connector from PCB and measure the resistance
across both terminals.
Yes
Is the resistance at the time
greatly out of those on the
right side table?
Replace the PCB and reoperate the unit.
(Operation) (Timer)
- Wire open or short of outdoor COND OUT sensor
- Wire open or current leak of related sensor
No
(Fan) (Filter) (Removing frost)
No
Connect the connector to
PCB and reoperate the unit.
Temperature
Yes
Since it is the defect of the
outdoor suction temperature sensor
itself, replace it.
- 184 -
Resistance
(˚C) (kΩ)
70 2.2
60 3.0
50 4.2
40 5.8
30 8.3
20 12.1
10 18.0
0 27.3
-10 43.0