thanks for your info, british gas fit the new heatexchanger and pump have called them out will be here 2moz but when they come they just hit the reset watch it for 10/15mins and will be on there way as we have had them out 5 times to it now
i have a saunier duval thema f23 combi it has just had a new heat exchanger and pump fitted to it but once again we are getting a loud wooshing noise through the boiler as it seems to be overheating,the manual says the reset switch is on the right hand side of the thermostat but i cannot find a...