Central heating problem

[qube_TA]

Got up this morning, the combi boiler on the 1st floor is running but only some of the radiators are getting hot, downstairs all the rads are cold. Was fine last yesterday evening. The pressure in the boiler looks OK (albeit a little higher than normal).

Other than drain & flush the whole system any ideas what would be best to sort it, the house is properly cold without central heating.

Cheers

[redeye]

close rads up stairs force water down stairs add up stairs rads one at a time till all on sounds like a blockage ,get it cleaned

[qube_TA]

Was only cleaned about 3 months ago, I think it's frozen!

[Ydnaroo]

Pump packed up? Upstairs radiators getting hot by natural convection.

[qube_TA]

Ydnaroo said:

Pump packed up? Upstairs radiators getting hot by natural convection.

I can hear the pump, going to drain and refill it now and see if I can get it running, otherwise I'll get someone out to it, it's still under warranty as it's only 18 months old.

[Deva Link]

Ydnaroo said:

Pump packed up? Upstairs radiators getting hot by natural convection.

Doubt that would happen with a combi, especially as the boiler is upstairs. Even if they can run if the pump isn't working it would cut out very quickly as the water in the heat exchanger got too hot.

It could well be a frozen pipe.

[qube_TA]

Won't drain either, completely solid.

Dammed microbore pipe!

[Gingerbread Man]

qube_TA said:

Dammed microbore pipe!

8mm or 10mm?

[qube_TA]

Gingerbread Man said:

qube_TA said:

Dammed microbore pipe!

8mm or 10mm?

8

[Gingerbread Man]

qube_TA said:

Gingerbread Man said:

qube_TA said:

Dammed microbore pipe!

8mm or 10mm?

8

Make sure you keep the system in bloody good nick as any sludge in it will stop it working completely. I bloody hate microbore, and using 8mm instead of 10mm as well just courses problems.

[qube_TA]

Gingerbread Man said:

qube_TA said:

Gingerbread Man said:

qube_TA said:

Dammed microbore pipe!

8mm or 10mm?

8

Make sure you keep the system in bloody good nick as any sludge in it will stop it working completely. I bloody hate microbore, and using 8mm instead of 10mm as well just courses problems.

Yeah I've used a chemical flush a few times on it, inherited it with the house, it's not something I would have installed but as the underdrawings are so shallow to replace it all would mean ripping up most of the ground floor potentially killing the nice oak floor that's down.

I think it was a daft 80's idea to save copper usage, not a fan.

[qube_TA]

Pipes have burst, made a right ol' bang, I'd drained the downstairs rads as much as I could so hopefully there's not too big a puddle under the house.

Bypassed the downstairs rads so have hot water and upstairs heating.

Going to wait until Spring I think and replumb the whole lot properly, PITA as it'll mean ripping up most of the floors.

Maybe I can get some insurance to help pay for it.

[Festive Ferg]

qube_TA said:

Going to wait until Spring I think and replumb the whole lot properly, PITA as it'll mean ripping up most of the floors.

Can't you ignore the ground floor carcass and drop for the radiators?

[qube_TA]

Festive Ferg said:

qube_TA said:

Going to wait until Spring I think and replumb the whole lot properly, PITA as it'll mean ripping up most of the floors.

Can't you ignore the ground floor carcass and drop for the radiators?

What have the pipes above the floor? Not really, there would be no where to hide them, would look a mess.