David Dawes asked ... How to recoil the starter spring - Champion R484TR?    |    peter high asked ... How can I set time on my Neff oven?    |    Michael asked ... Mountfield empress drive belt?    |    John Barton asked ... How do i clear the TAM?    |    John asked ... How can I mend my binatone veva 1210 handset?    |    Click here to ask your question

vaillant boiler trips house electrics when hot tap on?

When i put hot tap on or fire up the heating the main rcd trips on the fuse board.any ideas
steve.r, August 2012
Depends on which Vaillant, but in general, a faulty large motor will trip an rcd. Suspect pump and fan initially.

Carefree, August 2012
link Click here to see other fixes for Vaillant.