Sensor Flt BTX — Sensor fault (temperature sensor)

What does Sensor fault BTX mean?

A 'Sensor Flt BTX' alarm indicates a fault with one of the heat pump's temperature sensors. 'BTX' refers to a specific sensor, such as outdoor temperature, heat medium flow, heat medium return, hot water charging, brine in, brine out, or condenser out.

• A specific temperature sensor has failed or is providing incorrect readings.
• Loose or faulty wiring to a sensor.

Click steps to track your progress.

1. 1

   Note the specific 'BTX' number or description provided with the alarm to identify the faulty sensor.

2. 2

   Refer to the alarm log (Menu 3.4) for details on the operating status when the alarm occurred.

3. 3

   Attempt to reset the alarm via the display. If the alarm returns, the sensor likely needs inspection.

4. 4

   Contact your installer for diagnosis and replacement of the faulty sensor.