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Mend Britony Heating Combi Boiler Works Fine Hot Water

heating probs?

I have a Chafetaux Britony combi boiler that works fine when you need hot water. The problem sarts when you switch the heating on. It fires up no problem then after about 45 seconds the flame goes out the pump runs on for about three minutes and it seems as though the heat generated is being pushed up the hot water pipe rather than the heating.
Do I need a new three way valve or do I need a new flow switch

Rod Thurland
September 2009
its a Chafetaux boiler chuck it in the bin !!!!

joseph
September 2009
probably faulty 3 way valve, if flow switch was faulty it wouldn't fire.

Ian
September 2009
Thermostatic rad valves are all open

rod
September 2009
Are thermostatic rad valves fitted ? check they are not jammed closed

a
September 2009

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