Keston Boilers Guide

Hi Everybody,

I have bought a Keston Combi C36 boiler two years ago. It is a great boiler in terms of performance. Well, I am here to share a problem, which my boiler is facing nowadays. Whenever I turn on the tap, I get the hot water but there is no heating. What is the matter?

Thanks

Nick,

Hi Nick, this is the common symptom of the boiler’s faulty diverter valve. It is important to share that diverter valve on the Keston boilers work like a seal. It opens & closes in order to let heat up the hot water & water in a heating system, which gives heat to the towel rails and radiators. In case there is a lot of hot water but no central heating, you need to check the diverter valve as sometimes it trapped on the hot water side. Even though hot water is always a priority, the diverter valve cannot open to let the heating to easily warm up.