Flt:EM1-BT52 135 — Boiler sensor fault

What does Flt:EM1-BT52 135 mean?

This indicates a fault with the boiler sensor (EM1-BT52), possibly due to open/short circuits or a defective sensor. The shunt may close and the burner stops.

• Open-circuit or short-circuit on sensor input
• Defective boiler sensor
• Shunt closes and burner stops

Click steps to track your progress.

1. 1

   Check the connections for the boiler sensor.

2. 2

   Inspect the sensor for any damage.

3. 3

   This alarm should reset automatically once the fault is corrected.

4. 4

   If the service technician symbol remains, contact your installer.