how can i fix chaffoteaux britony combi 80?

the green power button is lit.when i switch heating/hotwater on the boiler sounds as if its coming on but theres no heating or hotwater
m bamberough, January 2008
my boiler on,, hot water ok, but heater can't on.. what can i do,,

bally, October 2008
also flow switches can stick with the constant opening and closing of spindles clogging up with scale

paul allen, March 2008
the main pcbs can be very problematic on these boilers also hw and ch sensors get a corgi reg installer to check

paul allen, March 2008
My friend's got similar problems and his is the throttle valve that's gone. At the moment he's not getting any hot water.

shree, March 2008
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