all rads cold - help

[dingbat75]

Hello

all my radiators remain cold when i turn on the heating. the thermostat is turned up. the rads have all been bled.

Is it the CH pump thats died?? (Wilo Gold CH Pump)


I have a Powermax 155CP combi boiler

also what is the big screw in the middle of CH pump used for? can it be turned??

is it time to call a plumber?

cheesr

 

[Softus]

all my radiators remain cold when i turn on the heating. the thermostat is turned up. the rads have all been bled.

Please confirm that the boiler lights.

Is it the CH pump thats died?? (Wilo Gold CH Pump)

Quite possibly - they don't last forever and a pump failure would be consistent with the 'Nouvelle Cuisine' styled symptoms that you've provided.

also what is the big screw in the middle of CH pump used for? can it be turned?

It's a cover - you can remove it and determine whether or not the pump shaft is rotating when it ought to be.

is it time to call a plumber?

No necessarily. Unless it's a gas boiler problem then most of the usual suspects will be replaceable by you, with the right tools and willingness to learn.

Do you have any motorised valves?

 

[dingbat75]

Yep the boiler lights up and i get hot water.

if i remove the cover will water pour out?

I could try to replace it but i would need instructions with pictures if possible
don't what u mean by motorrized valves on the CH pump??

what size/type pump would i need to buy as i dont know what size this one is. is there a standard size for domestic combi boilers?

 

[dingbat75]

how do you turn the ch pump if it hasnt been used for a while?