Indoor unit shows E2 and stops cooling or heating; unit may start then shut down after a short time.

Safety: Isolate power at the breaker before opening the indoor unit.

• 1. Remove front cover: Open or remove the front panel and air filters to expose the evaporator coil area.
• 2. Locate evaporator NTC: Look for a small probe or bead-type sensor clipped to the evaporator coil fins, usually near the middle or outlet side, with two wires leading to the PCB.
• 3. Check physical placement: Ensure the sensor is firmly clipped to the coil. If it has fallen away, re-clip it securely so it senses coil temperature correctly.
• 4. Inspect wiring: Follow the sensor wires back to the indoor PCB. Look for cuts, crushed insulation, or loose connectors. Reseat the connector.
• 5. Test resistance (optional, for skilled users): Disconnect the sensor and measure resistance at room temperature. Compare with typical NTC values (often 5–20 kΩ at 25°C). Replace if open/shorted or far out of range.
• 6. Replace sensor: If faulty, install a new Beko evaporator temperature sensor, routing wires away from sharp metal edges and re-clipping to the coil.
• 7. If error persists with a new sensor: The indoor PCB may be defective and should be tested or replaced by a professional.