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its just that the boiler company said a system boiler should only be fitted to a pressurised system. Thats why im thinking has the wrong type of boiler been installed. or has the installer changed the system somehow cos they never took away the tank in the loft. but also they never mentioned the...

How do I know if I had a pressurised system before? It was a gravity feed with a hw cylinder and a header tank in loft. This worked perfectly well. I read in the boiler manual that a system boiler should only be fitted to a pressurised system so maybe I should have been given a heat only boiler...

Nothing else was done as far as im aware. I think maybe some pipework was changed but not sure

Could it be that the wrong boiler has been installed. Apparantly a system boiler should only be installed on a pressurised system with a loop fitted and instructions on how to keep the pressure topped up. I still have the hot water cylinder in airing cupboard and the header tank in the loft. A...

It was a gravity system before the boiler was changed. I have changed the interlocking on the programmer switches but do you think I may need a new programmer then., The electrician said he had taken the programmer out of the equation totally when he was checking it and that it was all ok so he...

no. Upstairs doesnt come on at all and downstairs are only slightly warm all over

No its not zoned. The radiators only come slightly warm when hw on.I cannot get ch to come on or control room temp via room thermostat as I used to before. I just used to up the room thermostat and ch would come on but it doesnt anymore

Theyve been back 6 times, its a ideal logic + system 30 boiler with my previous programmer and thermostat. I suppose the replacement valve could also be faulty but its all the other problems that have come to light aswell

I dont think it has ever worked properly. It is a 3 way valve. At first the ch was coming on when switched off. Then I had no hot water and the valve was replaced but ch still comes on when just water programmed to come on. The radiators are only warm at this point and cannot be controlled with...

Ive had a new system boiler fitted and I cannot control ch via the room thermostat. The upstairs radiators dont seem to come on . The ch doesnt come on if there is a full tank of hot water. I cannot get ch when I want it to come on. Do you think it might be the electrics. They have been back to...

I have recently had a new system boiler fitted and the heating comes on when it is switched off. The hot water is timed to come on twice daily but whenever the water is on then the heating comes on even though it is switched off. I have had a replacement valve fitted and its still the same...