Indoor Heat Exchanger's Eva Out Sensor Dislocation Error (Open/Short) - Samsung AM007FN1DCH/AA Service Manual

Troubleshooting

4-4-7 Indoor Heat Exchanger's EVA OUT sensor dislocation error (Open/Short)

Outdoor unit display
Indoor unit display
Criteria
Cause of problem
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
* Hydro Unit : Before and after the Compressor operation, EVA Out tempera-
ture difference is less than 3
2. How to check
4-42
x x x ( x x x : The address of the error occurred indoor unit)
×(Operation) ◑(Timer) ◑(Fan)
• Refer to the judgment method below.
• Breakaway of Indoor Heat Exchanger EVA Out sensor
OK
NO
OK
OK
Breakaway Error of Indoor Heat
Exchanger EVA Out sensor
°C
.
◑(Filter) ×(Defrost)
2) During Heating operation
Average high pressure > 25kg/
Average low pressure > 8.5kg/
Tcond, 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
OK
cm²
OK
cm²
OK
NO
OK
OK
Breakaway Error of Indoor Heat
Exchanger EVA Out sensor
℃ Ω
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
Samsung Electronics