Low hot water temperature or lack of hot water — Check filling valve and mixer valve

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

If you are experiencing low hot water temperature or no hot water, check the filling valve and any installed mixing valve. The heat pump might also be in an incorrect operating mode.

• Closed or choked filling valve
• Mixing valve set too low
• Incorrect operating mode

Click steps to track your progress.

1. 1

   Verify that the filling valve for the hot water heater is open and not blocked.

2. 2

   If a mixing valve is installed, check its setting and adjust if necessary.

3. 3

   Ensure the heat pump is not in 'manual' mode if hot water is needed; select 'addition' mode.

4. 4

   If the problem persists, consult the troubleshooting section or your installer.