hi there have a biasi 24s i seem to be having a problem with the dhw when i turn the hot tap on the water some times runs hot and then cold and vice versa the boiler fires up as soon as the tap is turned on and the ch is ok can anyone help
I turn hot water tap on and boiler dos not fire up c/h do s not work either .
this fault used to happen for short time in morning hot water then cold I turn hot tap off then wait a few minutes then turn hot water on its was ok . BUT NOW will not fire up at all
victor
July 2016
i turn on hot tap heats up for30 secs then boiler maks loaud bang goes out wait 30secs same happens again
robbey
March 2012
there is a problem with central heating,wont start but the hot water option working fine
adam chyzynski
October 2011
hot water is working but not central heating
ejaz
October 2010
Hi im a corgi engineer PURE GAS of poole.
The water to water heat exchanger is scaled up if you sometimes find the water is cold and then hot sometimes scalding. replace this add put a water softner on the mains into the boiler cheers
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