Hi,
today I’ve taken 3 radiators outside to flush, as 2 were not working and one cold at the bottom, I appeared to wash a lot of black silt from all; However, it hasn’t helped with the 2 not heating at all.
one I feel is the last rad (6) and the other position 4 or 5 but hard to tell which order they start up when not heating up.
As soon as I refitted them and started to bleed I knew the problem remained, as the pressure from both was very low with the lock shields closed and trv (on one) open. Other rad has std tap style valve.
I have considered the trv might be stuck closed but it doesn’t appear to be, with lock shield closed and trv open, opening the bleed valve does bring some warm water to the valve (with pump running), closing the trv stops the water from coming out the bleed valve.
please note, this is with the boiler running, without the pump going the water stops coming out of the bleed valve after about an inch in small cup, unless the lock shield valve is open then it fires out as the other rads do.
all other rads are very hot, I have balanced all rads using a duel temp meter to 11 degrees inlet to outlet.
property is a small bungalow, 10mm piping is used throughout. Pressured boiler system. Third rad I flushed out ‘not heating at the bottom’ is now working properly.
I have tried bleeding with all other valves closed, makes little difference, nor do they heat when other rads closed off. Just little to no pressure from inlet pipes with system pressured.
hoping someone can help with some advise,
today I’ve taken 3 radiators outside to flush, as 2 were not working and one cold at the bottom, I appeared to wash a lot of black silt from all; However, it hasn’t helped with the 2 not heating at all.
one I feel is the last rad (6) and the other position 4 or 5 but hard to tell which order they start up when not heating up.
As soon as I refitted them and started to bleed I knew the problem remained, as the pressure from both was very low with the lock shields closed and trv (on one) open. Other rad has std tap style valve.
I have considered the trv might be stuck closed but it doesn’t appear to be, with lock shield closed and trv open, opening the bleed valve does bring some warm water to the valve (with pump running), closing the trv stops the water from coming out the bleed valve.
please note, this is with the boiler running, without the pump going the water stops coming out of the bleed valve after about an inch in small cup, unless the lock shield valve is open then it fires out as the other rads do.
all other rads are very hot, I have balanced all rads using a duel temp meter to 11 degrees inlet to outlet.
property is a small bungalow, 10mm piping is used throughout. Pressured boiler system. Third rad I flushed out ‘not heating at the bottom’ is now working properly.
I have tried bleeding with all other valves closed, makes little difference, nor do they heat when other rads closed off. Just little to no pressure from inlet pipes with system pressured.
hoping someone can help with some advise,