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- 16 Feb 2019
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Anyone who can answer me this one? Recently had my Annual boiler service. I have a conventional boiler ( a Worcester Greenstar Ri). Since then I have noticed that the hot water in my hot water cistern is now heating up in 2 or 3 separate stages of “burn” from the boiler, rather than in one sustained “burn” from the boiler, which was the case prior to the service. The water is indeed reaching the required 60c temperature as set on the cylinder stat, and the boiler then shuts off as per usual. I’m just curious to know what has been done by the servicing engineer to cause the hot water to now heat up in several stages. Do I have a “dodgy” cylinder stat? Or what?