Fuze blowing when central heating kick ins

Fatles · 4 Jun 2007

Please help!. Every time the heating is supposed to come on (when the thermostat clicks) the 3 amp fuse located next to the heating timer control blows. The hold water remains unaffected.

With my limited knowledge of heating systems I managed to set the valve to stay open so that the water will pass through into the radiators when the hot water in on.

The fuse still blows if I click the thermostat when the valve is in the manual open position. I have replaced the thermostat and the same thing happens.

Has anyone got any ideas on how I can trace the fault?

Thanks In advance

Agile · 4 Jun 2007

It sounds to me as if you have a motor valve which has a fault perhaps caused by water leaking onto it?

Tony

Fatles · 4 Jun 2007

Any ideas where the motor valve is located? I assume it will be in the airing cupboard.

Agile · 4 Jun 2007

I dont live in your home so I can tell you when mine is at home but not where yours is!

I think your clean socks are in kept your bottom drawer! Am I right?

Tony

corgiman · 4 Jun 2007

Agile said:
I dont live in your home so I can tell you when mine is at home but not where yours is!

I think your clean socks are in kept your bottom drawer! Am I right?

Tony

WOW spooky as Mine are

Your scaring me Mystic Tone

(whats the winner going to be in the 315 kempton park?)

PS I have no idea if There is in fact a 3 15 at kempton park, i am just using it as a comedic vehicle

Fatles · 4 Jun 2007

Top drawer actually!. Is the valve you are tlaking about the same as the valve I have set to open?

Agile · 4 Jun 2007

I dont know which valve you have set to open but it sounds very likely to me!!!

I have just had a thought though. Just possibly you have a gravity hot water system and its your pump at fault when its inly used on CH.

Disconnect the live wire into the pump and tape it up and see if the fuse blows then. If not then its your pump! You may find it smells odd ( like old socks I suppose ).

Tony

gas4you · 4 Jun 2007

If it was the pump it would do it when hot water comes on as well. Have you had any alterations to your heating lately and had the room stat wired up wrong ie neutral where switched live back to controls should be?

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Fuze blowing when central heating kick ins

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