Cannot adjust domestic hot water settings — DHW function is off

What does No green light (DHW) mean?

If there is no green light visible above the domestic hot water symbol on the controller, the domestic hot water function is currently switched off. This prevents you from adjusting its settings.

• The domestic hot water function is not enabled or switched off

Click steps to track your progress.

1. 1

   Locate the power button (on/off icon) on your controller.

2. 2

   Press the power button to switch the domestic hot water function ON.

3. 3

   Verify that a green light now appears above the domestic hot water symbol.

4. 4

   Attempt to adjust the domestic hot water settings again.