Additional heat blocked symbol on display — Auxiliary heating is temporarily stopped

What does Additional heat blocked symbol mean?

A symbol on the display indicates that the additional heat (immersion heater) is blocked. This can occur due to operating mode settings, scheduled blocking, or an active alarm condition.

• Operating mode selected in Menu 4.2
• Scheduled blocking activated in Menu 4.9.5
• An active alarm condition blocking additional heat

Click steps to track your progress.

1. 1

   Check the heat pump's display for any active alarm messages in Menu 3.1 (INFO).

2. 2

   Review the operating mode settings in Menu 4.2 to ensure it is not set to a blocking mode.

3. 3

   Verify scheduled blocking settings in Menu 4.9.5.

4. 4

   If an alarm is present, address the alarm first as it may be the root cause of the blocking.