E2 350 — Flow temperature sensor shorted

What does E2 350 mean?

The flow temperature sensor has shorted. This indicates a fault in the sensor or its wiring, leading to incorrect temperature readings.

• Short circuit within the flow temperature sensor.
• Damaged sensor wiring.
• Water ingress affecting the sensor or wiring.

Click steps to track your progress.

1. 1

   Power cycle the boiler by turning off the main power for 30 seconds, then restart it.

2. 2

   Visually inspect the flow temperature sensor and its connections for any signs of damage or moisture.

3. 3

   If the error persists, contact a qualified heating engineer to diagnose and replace the sensor if needed.