I have a Vokera maxin 24e that wont fire for hot water is there anyway of telling if it a damaged diaphragm or the hot water flow switch/sensor? Thanks.
the boiler fires when I put a screwdriver in and press the hot water flow switch in. The spindle from the diverter valve is moving out when a hot water demand is made but no far enough out for spindle to hit and compress the hot water flow switch. Is the likely course a split diaphragm?