Low hot water temperature or lack of hot water — Check hot water settings and supply

What does Low hot water temperature or lack of hot water mean?

This indicates an issue with the hot water supply, potentially due to settings, consumption, or a blocked filter.

• Closed or throttled filler valve
• Incorrect operating mode
• High hot water consumption
• Low hot water setting
• Low or no operating prioritisation of hot water
• Blocked filter

Click steps to track your progress.

1. 1

   Ensure the external filler valve for the water heater is open.

2. 2

   Check the operating mode in menu 4.2. If 'auto', increase 'stop additional heat' in menu 4.9.2. If 'manual', select 'addition'.

3. 3

   If consumption is high, wait for the water to reheat or activate 'temporary lux' in menu 2.1.

4. 4

   Select a higher comfort mode in menu 2.2.

5. 5

   In menu 4.9.1, increase the time allocated for hot water prioritisation.

6. 6

   Clean or replace the air filter (see page 23).