Hi everyone, looking for some advice please as to why my radiators at the top of the house need constant bleeding after a new boiler installation.
Last October I hired a plumbing firm to change my old 25 year old boiler (Potterton Kingfisher) floor standing boiler in the ground floor utility room.
They removed this and fitted a Worcester Greenstar 40Cdi classic regular wall mounted boiler in the same location. It is a sealed system and they replaced the old expansion tank that was in the loft with a new one (big red cylinder) which is positioned under the boiler.
They also fitted a brand new Grundfoss pump and a Magna clean pro cylinder connected to the system under the boiler.
The old central heating pipe network has not been altered except for in the area directly around the connections to the boiler, pump etc. they have fitted what looks like an air release valve near the pump/boiler.
At the time of fitting they cleaned and flushed the system. This has since been done several more times as post fitting a couple of the rads on the ground floor were not heating properly so over a period of months they tried to sort this and also bleed the system. The rads are now mostly working fine except for those the full up with air upstairs.
So the problem that remains is that in both my bathrooms upstairs where I have tall ladder towel rails, the rads needs constant bleeding. These are the two highest rads. Literally I will bleed them until water spurts out, then before I know it the top third of the rad is cold again, full of air the next day or sooner. I try to bleed the rads when the system is cold.
The plumbers have been round a number of times and don't seem to be able to sort it. They have suggested it might be a problem with the old design of the pipe network in my house, citing that they think the house boiler was elsewhere at some point... But I know the previous boiler was in the utility room for 25 odd years where it is now, and prior to changing it I didn't have this problem.
I'm no expert but every google result for "air constantly in my central heating" or similar suggests there is a problem, a leak, or a problem with the boiler install.
The installers are a reputable local gas safe firm. I am therefore perplexed why they are seemingly unable to resolve this.
What's also really weird is that both of these rads are fitted with electric heating elements for use in the summer. Both have stopped working since the boiler installation. I have had an electrician check the programmer boxes where I set the timer programmes for the heating elements and these are fine... Could the boiler install / flushing have damaged both heating elements?
Any tips gratefully received. Thanks in advance.
Last October I hired a plumbing firm to change my old 25 year old boiler (Potterton Kingfisher) floor standing boiler in the ground floor utility room.
They removed this and fitted a Worcester Greenstar 40Cdi classic regular wall mounted boiler in the same location. It is a sealed system and they replaced the old expansion tank that was in the loft with a new one (big red cylinder) which is positioned under the boiler.
They also fitted a brand new Grundfoss pump and a Magna clean pro cylinder connected to the system under the boiler.
The old central heating pipe network has not been altered except for in the area directly around the connections to the boiler, pump etc. they have fitted what looks like an air release valve near the pump/boiler.
At the time of fitting they cleaned and flushed the system. This has since been done several more times as post fitting a couple of the rads on the ground floor were not heating properly so over a period of months they tried to sort this and also bleed the system. The rads are now mostly working fine except for those the full up with air upstairs.
So the problem that remains is that in both my bathrooms upstairs where I have tall ladder towel rails, the rads needs constant bleeding. These are the two highest rads. Literally I will bleed them until water spurts out, then before I know it the top third of the rad is cold again, full of air the next day or sooner. I try to bleed the rads when the system is cold.
The plumbers have been round a number of times and don't seem to be able to sort it. They have suggested it might be a problem with the old design of the pipe network in my house, citing that they think the house boiler was elsewhere at some point... But I know the previous boiler was in the utility room for 25 odd years where it is now, and prior to changing it I didn't have this problem.
I'm no expert but every google result for "air constantly in my central heating" or similar suggests there is a problem, a leak, or a problem with the boiler install.
The installers are a reputable local gas safe firm. I am therefore perplexed why they are seemingly unable to resolve this.
What's also really weird is that both of these rads are fitted with electric heating elements for use in the summer. Both have stopped working since the boiler installation. I have had an electrician check the programmer boxes where I set the timer programmes for the heating elements and these are fine... Could the boiler install / flushing have damaged both heating elements?
Any tips gratefully received. Thanks in advance.
