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vokera maxim fault

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luke060

from Vanuatu

Joined: 30 May 2007
Posts: 8
Location: Vanuatu

PostPosted: Wed May 30, 2007 6:58 pm Reply with quote

i have had on going probs with my boiler, first it started loosing pressure from 1 1/2 bar to 0 in about 4 weeks and slowly its got worse, so now i have to re pressure it every day.. searched high and low and cant find any evidence of leaks...
now i cant get any hot water but the radiators work fine. the only way i can get hot water is if i first turn on the radiators before i run any taps.
can anyone help !!!
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nickso

from United Kingdom

Joined: 30 Oct 2006
Posts: 6245
Location: United Kingdom
Thanked: 227 times

PostPosted: Wed May 30, 2007 7:33 pm Reply with quote

no hot water is almost certain to be the diaphragm.

are you sure you haven't got water leaking out of the pressure relief valve?
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luke060

from Vanuatu

Joined: 30 May 2007
Posts: 8
Location: Vanuatu

PostPosted: Wed May 30, 2007 8:43 pm Reply with quote

is a diaphram expensive and is it easy to fit, and is it possible to test it to make sure, i will try to see if water is escaping from the pressure relief valve (is this the pipe what comes out the back of the boiler to out side)
tks
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gas4you

from United Kingdom

Joined: 23 Feb 2007
Posts: 17226
Location: Norfolk,
United Kingdom
Thanked: 594 times

PostPosted: Wed May 30, 2007 9:38 pm Reply with quote

No, not too expensive. Look for the dv assembly and when you turn a hot tap on see if a pin comes out about 10mm to activate a switch. if it dosen't then diaphragm perished. A lot of manufacturers state that these should be replaced about every 3 years, but in practice most people wait until it fails.

usually a reasonably straight forward job to replace.

Yes that is the prv.
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luke060

from Vanuatu

Joined: 30 May 2007
Posts: 8
Location: Vanuatu

PostPosted: Thu May 31, 2007 7:13 am Reply with quote

thanks very much, ill try that today.....
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luke060

from Vanuatu

Joined: 30 May 2007
Posts: 8
Location: Vanuatu

PostPosted: Thu May 31, 2007 9:08 pm Reply with quote

problem solved, thanks to all
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