Our radiators have recently started to go cold when they shouldn't and we have to run the hot water for a minute or so to make them come back on. We've tried bleeding them but that hasn't helped. Has anyone any ideas before we need to call a plumber? Many thanks.
Sorry, it's a Baxi Duo-tec Combo HE range boiler. In the past couple of weeks we've noticed the radiators have gone cold when they should still have been on. Nothing unusual showed up on the boiler but we tried turning a hot water tap on and let it run for a minute and the radiators came back on. Now this is happening at least once a day.
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