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Why does the hot water keep going cold?

I have a Worcester 280 RSF Combi boiler, the hot water keeps going cold, but the central heating is working fine. What is the cause of this & how do I get it fixed. Is there some sort of thermostat needs replacing?

Kev
December 2008
WorcesterHeating, Home Heating SystemsHot Water Keep Going Cold
sounds like the divertor valve

stuart priestley
December 2008
ihad same problem with my 24i just put on a new thermistor on the hot water side that cured it cost 7 quid

simon
December 2008
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