Sen flt: BT71 ext return sensor — Sensor fault: External return sensor

¿Qué significa BT71 ext return sensor ?

There is no contact with the external return line sensor (BT71). This may stem from an open or short circuit on the sensor input or a defective sensor. It can affect heating control.

• Open circuit or short circuit on sensor input
• Defective sensor

Haga clic en los pasos para seguir su progreso.

1. 1

   Inspect the BT71 external return sensor for damage.

2. 2

   Ensure the sensor is properly connected.

3. 3

   Check the sensor's signal.

4. 4

   Replace the sensor if faulty.