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Mend Vaillant Boiler Pressure Radiators

how can I fix my the pressure level on my boiler?

I have a vaillant combi boiler turbomax i think. the pressure has dropped to almost zero and there is no warmth coming from the radiators upstairs, the water and downstairs raditors work well so far! I have tried to fill the boiler with water to increase the pressure but nothing happened? What next?

Teena
December 2008

Vaillant Heating, Home Heating Systems Boiler Pressure Radiators

Hi Tina,

there should be a pressure valve underneath the boiler where you can allow more air in to raise the pressure.

Pressure should be between 1.0 and 2.5. I always aim for about 2.0. make sure you close the valve again after allowing air in. If there are several valves, best refer to the manual.

Not a plumber!
December 2008

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Vaillant Boiler Pressure Low - Fix Guide