sensor fault DEW-BT6 — Hot water sensor in extra water heater not connected or defective

What does 22 mean?

The DEW-BT6 sensor, which controls the hot water in the extra water heater, is not connected or defective.

• DEW-BT6 sensor is disconnected or has a loose connection.
• The sensor unit itself is faulty.
• Damaged wiring leading to the sensor.

Click steps to track your progress.

1. 1

   Turn off the Heat Pump at the main power supply.

2. 2

   Carefully check the wiring connections to the DEW-BT6 sensor.

3. 3

   Ensure the sensor is correctly installed and free from physical damage.

4. 4

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

5. 5

   If the issue persists, contact a service technician for assistance.