Troubleshooting
4-40
4-4-12. Outdoor sensor error(Error Code : E221, E231, E251, E320)
1. Test
items
1) Check the connection of the temperature sensor connector.
2) Check the resistance value of the temperature sensor.
2. Check
procedure
Error CODE
Description
E221
Outdoor temperature sensor error
E231
Outdoor temperature sensor error
E251
Outdoor temperature sensor error
E320
Outdoor OLP sensor error
Power OFF
Reconnect the temperature sensor connector.
No
Yes
Yes
Replace the temperature sensor.
ĺ
Power on.
ĺ
Check the normal operation.
ĺ
End the service.
No
Is the temperature sensor measuring resistance
similar to the table on the left?
After checking normal operation, end the service.
No
Yes
Replace the outdoor unit PCB.
ĺ
Power ON
ĺ
After
confirming the state is normal, end the service.
Is the temperature sensor connector connected?
Ex) COND. sensor/outdoor unit temperature sensor measuring resistance value by temperature : E231, E221
Ex) OLP sensor/discharge temperature sensor measuring resistance value by temperature : E320, E251
Current temp(°C) Resistance(kΩ) Current temp(°C) Resistance(kΩ)
70
4
20
10
60
5
10
20
50
6
0
30
40
7
-10
40
30
8
Current temp(°C) Resistance(kΩ) Current temp(°C) Resistance(kΩ)
80
40
30
180
70
50
20
220
60
60
10
320
50
90
0
550
40
110
Ex) Room temperature : 26
ఁ
-
Resistance : 10.28KΩ
Ex) Room temperature : 21
ఁ
-
Resistance : 205.4KΩ
Does same error occur again after power ON?
Содержание AC071MN4PKH
Страница 12: ...ProductSpecifications 2 9 2 3 4 Filter specifications Item Description CodeNo Remark FILTER AIR DB63 03764A ...
Страница 101: ...PCBDiagramandPartsList 5 4 5 1 3 Outdoor PCB Main PCB AC090 100 120 140MXAD H 1 2 3 4 5 6 8 9 10 11 12 ...
Страница 103: ...PCBDiagramandPartsList 5 6 Outdoor Unit PCB cont PF 4 INVERTER PCB SINGLE PHASE I AC090 100MXADKH 4 1 2 8 3 7 6 5 ...
Страница 105: ...PCBDiagramandPartsList 5 8 Outdoor Unit PCB cont PF 6 1 INVERTER PCB 3 PHASE I AC100MXADNH 1 2 8 4 6 5 3 7 ...
Страница 114: ...6 3 WiringDiagram ThisDocumentcannotbeusedwithoutSamsung sauthorization 3 phase PF 6 PF 6 1 Schematic Diagram ...