Samsung AM036NXMDCR - Outdoor Temperature Sensor Error(Open;Short) (Error Code: E221, E231, E251, E269, E276, E311 E321, E322, E323)

Troubleshooting
50
Samsung Electronics
3-13 Outdoor temperature sensor error(Open/Short)
(Error Code : E221, E231, E251, E269, E276, E311 E321, E322, E323)
1. Check items
1) Check the temperature sensor connector
2) Check the resistance value of outdoor temperature
2. Check procedure
Error code Error explanation Error code Error explanation
E221 Outdoor air temperature sensor error E311 Double tube temperature sensor error
E231 Cond temperature sensor error E321 EVI(ESC) IN temperature sensero error
E251 Discharge temperature sensor error E322 EVI(ESC) OUT temperature sensero error
E269 Suction temperature sensor error E323 Suction2 temperature sensor error
E276 Comp. top temperature sensor error
Turn off the power
No
Yes
Yes
No
If the resistance value measure
on temperature sensor similar to the values on
the table on the right side?
Check if everything is normal and end service
No
Yes
Change the outdoor unit PBA → Turn on the power →
Check if everything is normal and end service
Is the temperature sensor
connector properly connected?
If the resistance value measure
on temperature sensor similar to the values
on the table on the right side?
Connect the temperature sensor connector
Change the temperature sensor → Turn on the
power → Check if everything is normal and end
service
(Ex.) Resistance value for temperatures measured by Cond. Sensor/
outdoor temperature sensor : E221, E231, E269, E311, E321, E322, E323
(Ex.) Resistance value for temperatures measured by OLP Sensor/
Discharge sensor: E251, E276
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) Temperature 26°C –
Resistance 10.28kΩ
Ex) Temperature 21°C –
Resistance 205.4kΩ
OLP sensor: 200kΩ at 25°C
Discharge sensor: 200kΩ at 25°C
COND. sensor: 10kΩ at 25°C
Outdoor unit temperature sensor: 10kΩ at 25°C
OLP : 200Kohm at 25°C
D-tube : 10Kohm at 25°C
Check the CN43 connection
Check the CN44 connection