Samsung AVMKH020EA0 Service Manual page 192

8-2-12. Outdoor temperature sensor error
Outdoor unit display
Indoor unit display
Judgment method
Causes
Is outdoor temperature
sensor connector departed
from PCB?
Separate the outdoor temperature sensor
connector from PCB and measure the
resistance across both terminals.
Yes
Is the resistance at the
time greatly out of those from the
right side table?
Replace the PCB and reoperate the unit.
(Operation) (Timer)
- Wire open or short of outdoor temperature sensor
- Wire open or current leak of related sensor
No
No
- 191 -
(Fan) (Filter) (Removing frost)
No
Connect the connector to PCB
and reoperate the unit.
Temperature
Yes
Since it is the defect of the outdoor
sensor itself, replace it.
Troubleshooting
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