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Hello, If the spindle on the diverter valve is working - as in it is correctly depressing the microswitch - does this mean the diaphragm is in working order, or could there still be an issue with it?? Thanks Daniel

Hello all, I have a question if you wouldnt mind helping with... I have a Ravenheat CSI85 boiler which has recently stopped producing a continuous flow of hot water. The boiler fires up but then simply cuts off, and then re-ignites up to 15 seconds later. I have had a plumber out to...