Andy asked ... How can I mend my MacAlistair 450w hedge trimmer?    |    Felix asked ... Hitachi vt-m70em?    |    Katie Bond asked ... Fixing auto threader on Baby Lock Enlighten Overlocker?    |    Chris. asked ... Miele W800 novotronic washing machine?    |    Larry asked ... How to stop my steam iron from leaking. Model dw2463 Rowenta?    |    Click here to ask your question

Vaillant EcoTec Plus 831?

My girl-friend`s boiler keeps loosing pressure. What could be the cause of it? She says the boiler has to be switched on to get the appropriate pressure in the boiler so the hot water can flow in a shower.
Raph, March 2010
link Click here to see other fixes for Vaillant.