In the past i've had sludge type problems with my CH and have tried sentinal products to rectify it which to a degree worked but not 100% which i think is down to the microbore piping. Also in 2005 i had a new boiler and asked to have the system powerflushed which they did and at the time i thought it was done correctly, but since have realised that the 50 or so minutes they connected it up for was nowhere near as long as it should be on for !
Anyway to my problem.
One of the rads is in a sort of C shaped room and still never heats up at the bottom so after trying to flush with a hose - not enough pressure tho - i decided as all my rads are single panel i might as well bite the bullet and try fitting a double panel in its place hoping the extra BTU would be more than sufficient to heat the whole room.
I hung the rad nicely and connected up the piping no problem filling the rad and bleeding all air til water ran through.
Then when i turned on the CH the TRV pipe heated up pretty quick but the rad didn't, after about 20 minutes the top of the rad was warm at best and that was about it. I noticed that the lockshield end was as cold as it had been before.
What are my likely solutions ? I'm guessing i have a blockage in the return pipe so when i have time i planned to get the room half empty to get up the carpet and bit of floorboard to see how much piping there is to where it meets the main return pipe as i'd guess it'd mean draining down the system cutting the pipe to unblock the coupling it back up ???
I also wandering how the water would run if i drain the rad again and with the central heating off unscrew the top of the lockshield .... would i get a jet of water shooting upwards until the whole system emptied or are they one way ?? ??
As you can probably tell i aint no CH engineer but prefer to do as much myself as i can.
My system as far a i can tell was installed in about 1988 with 8mm microbore, i'm not sure if the main feeds will be 15 or 22mm ??? and i have a Vaillant 828se boiler.
Ideally i'd be looking at changing a few more of my upstairs rads to double panel as when it was installed they didn't believe in placing them under windows so theres no convection effect with the cold air with them all fitted to internal walls.
Please don't knock me donw to much for not getting someone more knowledgable in to do it all
Thanks.
Anyway to my problem.
One of the rads is in a sort of C shaped room and still never heats up at the bottom so after trying to flush with a hose - not enough pressure tho - i decided as all my rads are single panel i might as well bite the bullet and try fitting a double panel in its place hoping the extra BTU would be more than sufficient to heat the whole room.
I hung the rad nicely and connected up the piping no problem filling the rad and bleeding all air til water ran through.
Then when i turned on the CH the TRV pipe heated up pretty quick but the rad didn't, after about 20 minutes the top of the rad was warm at best and that was about it. I noticed that the lockshield end was as cold as it had been before.
What are my likely solutions ? I'm guessing i have a blockage in the return pipe so when i have time i planned to get the room half empty to get up the carpet and bit of floorboard to see how much piping there is to where it meets the main return pipe as i'd guess it'd mean draining down the system cutting the pipe to unblock the coupling it back up ???
I also wandering how the water would run if i drain the rad again and with the central heating off unscrew the top of the lockshield .... would i get a jet of water shooting upwards until the whole system emptied or are they one way ?? ??
As you can probably tell i aint no CH engineer but prefer to do as much myself as i can.
My system as far a i can tell was installed in about 1988 with 8mm microbore, i'm not sure if the main feeds will be 15 or 22mm ??? and i have a Vaillant 828se boiler.
Ideally i'd be looking at changing a few more of my upstairs rads to double panel as when it was installed they didn't believe in placing them under windows so theres no convection effect with the cold air with them all fitted to internal walls.
Please don't knock me donw to much for not getting someone more knowledgable in to do it all
Thanks.