Brrrrrr!! it's cold - bolier tripping electrics

Dec 04, 2005 7 Replies

I have a problem with my central heating today. When the timer starts the Heating or Hot Water it trips the fuse box.



I have a Potterton EP2001 timer. If I press the Advance button on either the CH or HW the light comes on and then there's a 3-4 sec delay and then the 13amp socket fuse blows (it's not 13amp it's the fuse for the downstairs sockets)



Hence I have no heating - luckily I have an emersion too so I have hot water.



Should i be calling a heating engineer or electrician?



Simon



A possible suspect is the circulation pump. Can you disconnect that, and see whether you still have the problem? [But don't do it for more than a few seconds - or the boiler will over-heat if the pump isn't running]. Or you could wire the pump into a normal 13A plug and see whether it trips when you plug it in (using an extension lead if necessary).

If it *is* the pump, you'll have to decide whether to DIY it (not too difficult if it has working isolation valves either side) or call a plumber.

Try asking on alt.hvac (Heating and air conditioning questions.)

Aha! thanks - I have located the pump and it's go a puddle of water underneath it and is dripping. Have put a bucket underneath it - failed pump??

Aha! thanks - I have located the pump and it's go a puddle of water underneath it and is dripping. Have put a bucket underneath it - failed pump??

"Mr. Bitstreams..... It's your pump."

(Bitstreams asks nervously...)

"Will it be all right?"

"No, it's buggered, and so will you be when you call the plumber to come and fix it".....

Actually it might just be leaking. Have a look at whether the leak is coming from the shaft area or the connections at either end, or between mating parts of the pump body.

Sounds quite likely - especially if any of the leaking water has got into the electrics.

Why? He's probably got far more chance of getting an answer here.

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