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combi boiler making clunking noises?

hot water start to run cold on inspection can hear clunking and scraping noises inside boiler plus water pressure gage bouncing all over

welly, May 2012

home Fix label Heating label_important Home Heating Systemsdone

most likely circulation pump blocked or failed

tony, May 2012

what make & model boiler do you have?
gas council number? 47-???-??
NO DHW?
does the CH work OK?
are do you get the same clunking noises when CH ON?
can you hear/feel the pump running?

manwithnoname, May 2012

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home Fix label Heating label_important Home Heating Systems

combi boiler making clunking noises?

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combi boiler making clunking noises?

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combi boiler making clunking noises?

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