Lo - Flow Switch detected no water flow

What does Lo mean?

The flow switch has detected that there is no water flowing through the system. This indicates a low water level or a blockage.

• The water level in the system is too low.
• A blockage is preventing water flow.

Click steps to track your progress.

1. 1

   Check the water level in the boiler tank and add water if necessary.

2. 2

   Ensure the water intake and outlet pipes are not blocked.

3. 3

   If water was recently added, wait a few minutes for circulation.

4. 4

   Consult the boiler tank installation instructions for specific water level checks.