can anyone help i have an ideal sprint combi boiler and sometime when i have a shower or open sink in bathroom the water runs cold and the boiler wont light. to light the boiler i have to go into the kitchen and run the hot water tap on the sink for about 2 mins the boiler light instantly then i got back to the shower turn it on, water heats up i close kitchen sink tap then have my shower. does anyone know what part is faulty on my boiler.
many thanks
many thanks