Recent content by James5689

user cross thread posted as shown above that the problem could be my isolation valve ive had a problem with this component a year or 2 ago when I had it repaired so im thinking if this can cause the issue this will be the problem.

I don't have heating zones

if you have any idea if what cross thread posted can cause this problem ? Im pretty sure it could be that as I had a problem with the isolation valve a year or 2 ago ill check sometime this week when I have time and post back if it fixed the issue. I'm also fairly confident in saying there is...

I did keep the filling loop open and ran it for more than several minutes

yes I did get a full flow of water from the valve and also for the lock shield valve as well the system is pressurised

ill need to double check diameter but think its like 15mm - 20mm if your after the setup its feed an return not a single loop setup

all simultaneously last Saturday when I went to turn the central heating system on yes they have trvs ive checked these taken them all off ive bleed each radiator removed each radiator cleaned them and flushed the whole system with the lock valves open. I did this as I couldn't find any other...

Thanks @cross thread I will give that a check tomorrow. @terryplumb sorry should of included this yes this was one of the first things I checked they did not heat up @MeldrewsMate the reason I took the pump off was to check the impellor for blockages or too see if it was damaged it was fine

Hi I'm at my wits end with my heating my radiators heat up upstairs but stay cold downstairs I've bleed the radiators and flushed the system as I read its usually a blockage problem unfortunately I found no blockage. I then read it could be a pump problem and due to ruling the others out even...