the combi lights up ok the problem is when the heating is about up to temp the boiler sounds like a kettle.then the flame goes out this happens for about 20 mins the the boiler runs with out any noise.
at no time does the boiler lock out it just sounds like the water is to hot
i have has the thermisters change
please help
at no time does the boiler lock out it just sounds like the water is to hot
i have has the thermisters change
please help