What have i done? Help please …

[markyyyyyy]

I live in a 2 up 2 down terraced house so only 5 radiators in the house

Kitchen, bathroom, both bedrooms, Living room

Today I installed a new radiator in the bathroom, and bevause they are vertical pipes coming out of the floor, I drained the upstairs radiator and pipework. On the two bedrooms upstairs, I turned the lockshield and TRV valve both off before draining the bathroom radiator (drained via the kitchen radiator as seen on picture below

Before refilling system, I put the bedroom radiators back to their initial setting (trv valve and lockshield).

Every radiator in the house was boiling hot, apart from the kitchen one… it was stone cold and so was the pipework supplying it

The kitchen radiator is below the bathroom

Any idea why my radiator is stone cold?

I have tried bleeding it but there is no air in there, water came straight out of bleed nipple

Thanks

 

[Murdochcat]

Air lock probably

 

[markyyyyyy]

Air lock probably

How would I resolve?

 

[Murdochcat]

Try turning off as many of the other radiators to see what happens - but not all

 

[markyyyyyy]

Try turning off as many of the other radiators to see what happens - but not all

Turn them off at both TRV and lockshield?

 

[Harry Bloomfield]

Turn them off at both TRV and lockshield?

Just off at one valve, is enough, but leave the kitchen radiator on. Idea is to move the air lock, and air, to the kitchen radiator, where you can then bleed it.

 

[Madrab]

Is the system sealed - pressure gauge and filling loop somewhere/on boiler or are the rads filled by a small cistern in the attic?

 

[markyyyyyy]

Try turning off as many of the other radiators to see what happens - but not all

This did the job! All rads working great now

Thank you