Samsung AM022FN1DEH/TK Service Manual page 198

4-4-8 Simultaneous Indoor Heat Exchanger's EVA IN, OUT sensor dislocation error (Open/Short)
1. How to diagnose
1) During Cooling Operation
Tcond, out - Tair, out > 3°C
Tair, in - Teva, out > 4°C
Tair, in - Teva, out > 4°C
Compressor in operation &
Indoor unit operation & Thermo On
Error details
2) During Heating operation
Average high pressure > 25kg/㎠
Average low pressure > 8.2kg/㎠
Teva, out - Tair, out ≥ 3°C
Tair, in - Teva, out ≥ 2°C
Tcond, out - Tair, out < -2°C
Compressor in operation &
Indoor unit operation & Thermo On
Error details
2. How to check
Check if an Indoor heat exchanger's EVA IN, OUT sensor has been dislocated then is correct after assembling.
Samsung Electronics
OK
NO
NO
OK
Simultaneous indoor heat exchanger's
EVA IN, OUT sensor dislocation error
OK
OK
NO
NO
OK
OK
Simultaneous Indoor heat exchanger's
EVA IN, OUT sensor dislocation error
Troubleshooting
4-53