sensor fault BT11 — Condenser out sensor not connected or defective

What does 11 mean?

The BT11 sensor, which measures the condenser outlet temperature, is not connected or defective. When this alarm occurs, the compressor is blocked.

• BT11 sensor is disconnected or has a loose wire.
• The sensor itself is faulty or physically damaged.
• Electrical issue affecting the sensor's reading.

Click steps to track your progress.

1. 1

   Turn off the Heat Pump at its main power supply.

2. 2

   Inspect the BT11 sensor and its associated wiring for any loose connections or damage.

3. 3

   Ensure the sensor is correctly installed in the condenser outlet.

4. 4

   Restore power to the Heat Pump and check if the alarm clears.

5. 5

   If the alarm persists, contact a qualified service technician for diagnosis and repair.