Hot water no heating

[Lee4all]

Hello all, i have a potterton 80 combi with no central heating although the hot water is fine any clues as to where to start?

 

[Durgo]

first - Controls/settings on boiler, roomstat set too low, timer set to CH off, check the pressure in the system (on the guage on the boiler
) and bleed any air from rads.

 

[Lee4all]

The only conttrols are the ones on the boiler, there is no way of regulating the heating or hot water settings on the boiler as far as i can see

 

[Durgo]

The only conttrols are the ones on the boiler, there is no way of regulating the heating or hot water settings on the boiler as far as i can see

I was indeed refering to the grey knob on the boilers control panel that controls the CH level.
Have you checked any roomstat you have?

 

[Lee4all]

There is no control knob/roomstat.
The only controls are on the boiler electro mechanical timer an off/constant /timed switch.
Bled rads and pressure is at 1.5 bar.

 

[fender]

Sounds like it may be the central heating pump

 

[Lee4all]

The pump has surely been proven because that works after a Dhw draw off, is this looking like the pcb?

 

[Lee4all]

Anyone else feel free to help ......


Tia.

 

[bengasman]

Wax capsule gone

 

[Lee4all]

Is this on the divertor valve ???

 

[fender]

The pump pushes the water around the ch system. Hot water pressure comes courtesy of the rising main. I still think the pump may be at fault.

 

[Lee4all]

The pump has surely been proven to work (it spins freely during hot water draw off) the more i think (its hurting,lol ) its looking like the Pcb.