Cuckoo asked ... Changing batteries on a fixed bt corded phone?    |    Marc Nollid asked ... Nissan Micra mk 5 2018 rear seat mecanism?    |    Maggie asked ... New Home 535?    |    paul asked ... Hook timing Janome QC 6260?    |    David asked ... Beeper bust?    |    Click here to ask your question

How do i reduce the pressure on the Vaillant boiler?

I have a Thermocapact Vaillant Boiler and when it is running the pressure is at 3bar (on the red mark).

i need to know how to reduce the pressure.
Kulwant Gill, January 2010
What is the pressure when the system is cold?
Needs to be just over 1bar. The safest way to drop pressure is to open a radiator vent untill you get to the correct cold setting.

RR, January 2010
link Click here to see other fixes for Vaillant Thermocapact.