New radiators not heating up

WIAWSNB

greenbee said:

Turned all the other radiators off and the new rad came on. Turned that off and the other one came on, so both now heated up happily - thanks for all the help. Writing it down helped me remember that I'd done this in a previous property when we were changing radiators around. 

Next job will be balancing them. Might leave that for another day though!

Cool - good result.

Did you try bleeding them again after this test? Worth doing, just in case what actually happened was the shifting of an airlock. If so, I'd expect a large fart.

Don't try 'balancing' unless you know what you are doing ;-)

greenbee

WIAWSNB said:

greenbee said:

Turned all the other radiators off and the new rad came on. Turned that off and the other one came on, so both now heated up happily - thanks for all the help. Writing it down helped me remember that I'd done this in a previous property when we were changing radiators around. 

Next job will be balancing them. Might leave that for another day though!

Cool - good result.

Did you try bleeding them again after this test? Worth doing, just in case what actually happened was the shifting of an airlock. If so, I'd expect a large fart.

Don't try 'balancing' unless you know what you are doing ;-)

There are autovents in the attic, but I bleed them regularly after changes.

And I do know how to balance radiators. It's not the first time I've done it... just like it's not the first time I've turned all the other radiators off to force the heat through the non-working ones. I might have to find a better pair of pliers for adjusting the lockshield valves though as the ones I was using today are the emergency spare ones that are rubbish.

WIAWSNB

greenbee said:

WIAWSNB said:

greenbee said:

Turned all the other radiators off and the new rad came on. Turned that off and the other one came on, so both now heated up happily - thanks for all the help. Writing it down helped me remember that I'd done this in a previous property when we were changing radiators around. 

Next job will be balancing them. Might leave that for another day though!

Cool - good result.

Did you try bleeding them again after this test? Worth doing, just in case what actually happened was the shifting of an airlock. If so, I'd expect a large fart.

Don't try 'balancing' unless you know what you are doing ;-)

There are autovents in the attic, but I bleed them regularly after changes.

And I do know how to balance radiators. It's not the first time I've done it... just like it's not the first time I've turned all the other radiators off to force the heat through the non-working ones. I might have to find a better pair of pliers for adjusting the lockshield valves though as the ones I was using today are the emergency spare ones that are rubbish.

My recommend to bleed is just in case an airlock has been shifted along to a rad. It would likely settle at the top and resist any attempt to escape further where the auto vent could do it's job.
It would be telling, too - if the rad started to work, and released a large burp if air, then you'd likely know the cause.
Is it a vented system?

diveunderthebonnet

greenbee said:

WIAWSNB said:

greenbee said:

Turned all the other radiators off and the new rad came on. Turned that off and the other one came on, so both now heated up happily - thanks for all the help. Writing it down helped me remember that I'd done this in a previous property when we were changing radiators around. 

Next job will be balancing them. Might leave that for another day though!

Cool - good result.

Did you try bleeding them again after this test? Worth doing, just in case what actually happened was the shifting of an airlock. If so, I'd expect a large fart.

Don't try 'balancing' unless you know what you are doing ;-)

There are autovents in the attic, but I bleed them regularly after changes.

And I do know how to balance radiators. It's not the first time I've done it... just like it's not the first time I've turned all the other radiators off to force the heat through the non-working ones. I might have to find a better pair of pliers for adjusting the lockshield valves though as the ones I was using today are the emergency spare ones that are rubbish.

Ditch the pliers and get yourself a spanner that fits even if it is a small adjustable one, better than chewing up the valves with the jaws of the pliers.

greenbee

diveunderthebonnet said:

greenbee said:

WIAWSNB said:

greenbee said:

Turned all the other radiators off and the new rad came on. Turned that off and the other one came on, so both now heated up happily - thanks for all the help. Writing it down helped me remember that I'd done this in a previous property when we were changing radiators around. 

Next job will be balancing them. Might leave that for another day though!

Cool - good result.

Did you try bleeding them again after this test? Worth doing, just in case what actually happened was the shifting of an airlock. If so, I'd expect a large fart.

Don't try 'balancing' unless you know what you are doing ;-)

There are autovents in the attic, but I bleed them regularly after changes.

And I do know how to balance radiators. It's not the first time I've done it... just like it's not the first time I've turned all the other radiators off to force the heat through the non-working ones. I might have to find a better pair of pliers for adjusting the lockshield valves though as the ones I was using today are the emergency spare ones that are rubbish.

Ditch the pliers and get yourself a spanner that fits even if it is a small adjustable one, better than chewing up the valves with the jaws of the pliers.

I bet I have one somewhere... it's just a question of where But good call. 

I'm putting off balancing the rads for a bit, as I've remembered there are two more radiator changes due on the same zone, so not much point in doing anything until they're done.