Worcester 24cdi radiator removal

[Airconman]

Hi thanks in advance for any replys.

I have been decorating one of my bedrooms this weekend. After removing a radiator to paint behind it and replacing it after paint. I opened the valves again to fill the radiator and tried to bleed out the air.
I have now tried to put the central heating on and the boiler fires up for a moment then seems to vent out of the top left of the unit and stop.

I presume i must have trapped air.

Can anyone shed any light on this?

Thanks

 

[JohnD]

does your boiler have a pressure gauge? Or is there a small feed and expansion tank in the loft?

Why do you say "tried to bleed out the air?"

 

[Airconman]

does your boiler have a pressure gauge? Or is there a small feed and expansion tank in the loft?

Why do you say "tried to bleed out the air?"

I say tried because i never got water out just air escaped until nothing came out. I put more water in the system and eventually got water out of it.

There is a pressure gauge on the front and it never seems to change.

Thanks for your reply

 

[JohnD]

what is the reading on the gauge?

Go outside the house and look at the pressure vent pipe, which usually comes through the wall behind the boiler and is bent back on itself. Is there any sign that it has ejected water?

 

[Airconman]

Just under 1 bar

 

[Airconman]

No it doesn't seem to have ejected anything out from there

 

[TCCHeating]

Guage might be dodgy. It might be reading just under a bar but it sounds like there isn't enough water in the system. See if you can get the guage up to 1.5 and then try

 

[Airconman]

I also get the water and heating lights flashing simultaneously very slowly

 

[Airconman]

I have never seen it above 1 bar before. My house isn't very large so i wouldn't think it would take long to up the pressure. The top left has air coming out of it when I put more water in

 

[TCCHeating]

Top left is prob your auto air vent. This confirms that the system doesn't have enough water in if air is coming out when filling. You're pressure guage is faulty. Get it replaced.

 

[Airconman]

Seems to be staying on longer now. Its not cut out yet anyway.

 

[Airconman]

Thanks for your help. Do you live in Manchester or close to the there?

 

[TCCHeating]

Afraid not mate.

 

[Airconman]

Ok cheers for the help

 

[Airconman]

Ok cheers for the help