Boiler / Electric Problem

[peterd]

When the timer for our boiler (not combi) kicks in it blows it's fuse & all the house electronics blow. I replace the fuse then everything seems ok for a few days, till it blows again. Getting the boiler serviced next month but anybody ever had this problem ?

[stanleyman]

Make sure you only put in a 3 amp fuse othewise you will weld the timer contacts together. You obviously have an electrical fault possibly caused by water, could be the pump or a drip somewhere. Best to get it done ASAP otherwise you could be without heat.

[KARL]

Apart from the main power wiring (not very likely since it is only at timed "on" times that you have a problem), to me the most likely culprit would be a zone valve that has shorted out somehow. If you feel unable to trace the fault yourself, get someone else to do it for you. Tradesmen are a lottery, particularly in some parts of the country, so good luck.