How can I fix my SIME combi boiler friendly format 80E?

my sime friendley80e the central heating goes off after two to three hours we switch it off then back on then it fires back up to do the same again any answers thanks.

p. armstrong
May 2011

my name is stuart taylor developer / landlord / laymen
i had trouble with a frendly format sime 80..having problems with hot water....I checked the internet and after great concerns and fears..replaced the heat Exchange and the divertor valve together...with basic tools spanners etc and allan keys..you can replace....i was succefull
and now have great hot water once agasin...my boiler is six years old..go for it you can do it...Most plumbers just say repalce boiler. you dont.
rhodespropertycompany@yahhoo.co.uk

Stuart. Taylor
August 2007

I have the same problem, has anyone got an answer?

annbev
July 2007