Grant Vortex Combi Boiler no hot water but radiators are hot

Hello All,

I bought a Grant Vortex Combi boiler five years ago due to its high-class performance. Well, it is quite true but now whenever I turn on the tap or shower, I did not get the hot water. I have checked the radiators. They are getting hot but the water is cold. What should I do in order to get the hot water?



Hi Rob

If your Grant Vortex Combi boiler is not providing you with the hot water but, radiators are hot then, the possible causes are poor mixing valve, dirty coil, and hot water in the boiler being overdrawn, bad aquastat control. I would suggest you contact an expert boiler engineer in order to rectify the problem.