Boiler fires up all the time????

[Pygmymonkey]

Hi

Anyone got any advice?

My combi boiler fires up all the time, its on pretty much perminantly, keeping my radiators anywhere between slightly warm to almost fully hot.
I've got my thermostat down to zero and the timer is set to OFF so it shouldn't do this at all.

Thanks

Pygmymonkey

 

[D_Hailsham]

It may seem a silly question but what make/model boiler do you have??

 

[Pygmymonkey]

Its an Alpha C23 Combi boiler.

 

[Agile]

The first thing I would look at is the DHW demand switch.

Tony

 

[Pygmymonkey]

Thats a good idea....

How would i do that?