The boiler had lost pressure, I've re prepressurised it and now have Central heating on demand, however the hot water will not activate on demand. I checked and the micro switch works the system but the plunger doesnt move when u open a downstairs tap but will move when u open an upstairs tap but not enough to activate the microswitch. help
Worcester 24 CDI diverter valve
- Thread starter Bdry
- Start date
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Needs a new diapragm in the divertor valve.
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