C251
Samsung
Samsung air conditioner error C251
Meaning
DIS-TH(Discharge temperature) Sensor error
Models
AR09TXFCAWKNEU, AR09TXFCAWKXEU, AR12TXFCAWKNEU, AR12TXFCAWKXEU, AR24TXEAAWKNEU
Causes and how to check
- the repair procedure printed in the service manual
- the cited manual page, and follow-up questions
No account needed to look up codes.
Model series: AR
Guides
- Checking an air conditioner temperature sensor (thermistor)
How to check the room, coil or discharge sensor when the unit reports a sensor error: measure its resistance and compare with the exact model's table. - Pressure, low refrigerant and high discharge temperature errors: where to start
Pressure and discharge-temperature protection codes: tell a low charge from a blockage or poor heat rejection before charging.