No hot water but heating OK

[terence8888]

Hi,

First post here so bear with me.

I've got a Keston C40 boiler which runs the underfloor heating and hot water in the house.

The CH seems to fine but there is no or little hot water. I checked the valve to the inlet of the HW tank. It seems OK but I can't feel much heat on the pipe itself. The CH temp is set at 40C and the HW at 60C at the Keston. The thermometer on the boiler shows around 38-45C.

I'm scratching my head what's wrong. Maybe the pump in the Keston is gone? How do I check it?

Any suggestions much appreciated

 

[Agile]

Do you have a motorised valve in the system?

If so is this working correctly?

Tony

 

[terence8888]

The motorized valve seems to be working. I took it off and can see it turn + light go on and off when I move the thermostat on the HW tank.