E123 — Indoor EVA OUT sensor error (Short or Open)

What does E123 mean?

The indoor unit's Evaporator Outlet (EVA OUT) temperature sensor has a short circuit or an open circuit.

• Indoor unit EVA_OUT Thermistor Open/Short circuit
• Faulty sensor
• Loose or damaged wiring to the sensor

Click steps to track your progress.

1. 1

   Power off the indoor unit at the circuit breaker for 30 seconds, then power it back on.

2. 2

   Ensure the indoor unit is clean and has good airflow.

3. 3

   If the error persists, consult a qualified technician to inspect or replace the EVA OUT sensor.