Code 101 - Mains voltage lower than allowed

What does 101 mean?

The mains voltage supplied to the boiler is below the acceptable operating threshold. This can be a blocking fault.

• Low mains voltage from the electrical supply
• Problem with the electrical installation
• External electrical interference (e.g., generator, wind turbine)

Click steps to track your progress.

1. 1

   Check the electrical installation for any obvious issues or loose connections.

2. 2

   Verify that the mains voltage is stable and within the allowed range.

3. 3

   Consider if a generator set, wind turbine, or other equipment could be causing electrical interruptions.