the pressure gauge on my combi dropped to 0, i raised it back to 1 bar and when i restarted my boiler the radiators started to heat up and stay on, when i have not turned the heating on. can anyone help. boiler is a worcester greenstar28i junior. thanks
central heating
- Thread starter dmacca3
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Does this boiler have some kind of new power-up run-in setting? Air purge mode, or something like that? Does the display on the boiler flash or display anything when you first power it up? Does the heating just last for half an hour or so?
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at a guess the boiler is coming on for preheat and ya diverter valve is stuck or passing
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