sensor fault BT16 — Evaporator sensor not connected or defective

What does 16 mean?

The BT16 sensor for the evaporator is not connected or defective. This alarm typically resets automatically.

• Loose or disconnected wiring to the BT16 sensor.
• A fault within the sensor unit itself.
• Temporary electrical anomaly.

Click steps to track your progress.

1. 1

   Wait a short time to see if the system performs an automatic reset.

2. 2

   If not, power cycle the Heat Pump by turning off and on the main breaker.

3. 3

   Check the physical connections to the BT16 sensor, ensuring they are firm.

4. 4

   If the alarm recurs, professional inspection may be necessary.