Fill the Pressure Reservoir of the Central Heating Boiler

Central Heater Boilers are often paired with a pressure reservoir (like the one in the image on the right).

Remeha Pressure Storage

This reservoir must be filled with tap water for the boiler to work. The working pressure for e.g. the Remeha Ace is between 1 and 2 bar. If the pressure is below 1 bar it is likely that the boiler will not work and trigger an error.

The video below shows an example where a Remeha Ace is triggering error code A02.06 that means "Water Pressure is too Low". The video also shows how to fill the pressure reservoir to achieve the necessary pressure for the boiler to work.