Hi please help i had a prob last week where i had no hot water boiler was no starting up on demand also water coming straight out o/flow called boiler man who said prob was diaphram also pressure relief valve,as he had no parts he gave me temp hot water by sticking pad under micro switch.He has since returned replaced parts all works well apart from now i have to have my temp right on max in shower to get warm water also the bath is the same please what could be the problem.
andy
andy
