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Boiler stopped working completely yesterday with the diverter not returning at all. Before getting an engineer back in who had suggested the diverter needed replacing, I decided to look at the servo. Took it off and stripped it down. The insides were clogged with muck. Clean it out and put it...

Hi the diverter valve between CH and HW appears to be playing up as the CH doesn't always fire up after HW has been used. Can anyone tell me how quickly the diverter should move please. When the HW is on it moves quickly with the pin moving out and pushing the microswitch(s) open. When it is...

Hi related question, how quickly should the diverter valve move back to the CH position after HW has been switched off? I have been having issues with the boiler not giving CH. The fan and pump go but the boiler doesn't light. HW is fine though. I noticed the diverter 'pin' was stuck out...