Samsung error code E122
What it means
Indoor EVAP IN temperature sensor error (short or open).
Possible causes
Evaporator inlet thermistor failure Disconnected or partially inserted sensor connector Thermistor operating out of specified resistance range
Suggested fix
Check the EVAP IN sensor connector and harness, then compare thermistor resistance to the factory table; renew the sensor if it is out of range or replace the PCB if the sensor values are normal but the fault persists.
Safety first. Isolate the power supply before inspecting any unit. Refrigerant-circuit
and electrical repairs must be carried out by a qualified, registered technician.
Other Samsung codes
- C5 — Malfunction protection of jumper cap (applies to the AR09-AR24TSHGAWKN midwall range).
- E1 — High-pressure protection of the system (applies to the AR09-AR24TSHGAWKN midwall range).
- E101 — Indoor unit communication error.
- E102 — Communication error between indoor and outdoor units.
- E108 — Duplicate device address error on the communication network.
- E121 — Indoor room temperature sensor fault.
- E123 — Indoor EVAP OUT temperature sensor error (short or open).
- E154 — Indoor fan motor or fan system error.
- E163 — EEPROM option data error on the indoor PCB.
- E2 — Anti-freezing protection (applies to the AR09-AR24TSHGAWKN midwall range).