btE – Back-up Battery error

What does btE mean?

An error has been detected with the appliance's back-up battery system. This battery supports functions like the power failure alarm during a mains power interruption.

• Back-up battery not connected properly
• Faulty back-up battery

Click steps to track your progress.

1. 1

   Check if the back-up battery is connected properly as described in the "Back-up Battery" section of your manual.

2. 2

   Ensure all battery connections are secure and free of any visible corrosion.

3. 3

   If the connection is correct and the "btE" error code is still displayed, contact the customer service department.