Cold running Shower - is it the valve


Postby trev_t » Fri Feb 26, 2010 7:32 pm

Hi looking for some advice - before I cut a hole in the wall to replace my shower valve.
The shower was fitted about 6 yrs ago and has worked fine. It is feed from cold water tank & hot water tank to twin impellar pump (separate hot & cold in and out).
Recently the shower has started to run cold midway through a shower, ie start of warm and goes cold after a while. There's still plenty of hot water - checked nearby taps.
Been in roofspace tonight and, after the shower started to run cold checked the output feeds from pump - still hot both in and out of the pump.

That leads me to think a faulty valve? Unfortunately it is buried in the wall so will need to cut away to replace/repair or even undo the connections :(

Only other bit that makes me wonder in it di something similar about a year ago and then seemed to correct itself.

Any ideas, recommendations or ways to test?

Many thanks
trev_t
Posts: 1
Joined: Fri Feb 26, 2010 7:19 pm

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Postby stoneyboy » Fri Feb 26, 2010 10:36 pm

trev_t,
Good chance the valve is scaled up causing it to stick. Turn the shower on and move the temperature control from fully cold to fully hot many times - this may free the internals. If this doesn't work you may be able to fit a new cartridge - depends on the make and model.
end
stoneyboy
Posts: 2708
Joined: Wed Dec 10, 2008 6:44 pm


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