No heating after bleeding radiators

[lewis_mdd]

I have an Appollo 50S boiler which seems to be working fine and the pipe from the boiler is hot. The airing cupboard is also warm

Some of the radiators were only hot at bottom of radiator, so decided to bleed all the radiators today.

Heating has worked fine before bleeding. Now all radiators cold after a while of boiler being on and some banging noises coming from pipework.

Any ideas as its freezing in my house at the moment. I'm not a diy person and don't know much about plumbing / heating so any information greatly appreciated

Thanks in advance

 

[bones001]

check your header tank has got water in it

 

[bab]

should never bleed rads with the pump on.

 

[lewis_mdd]

thanks for quick responses.

WIll check header tank now.

Also, i turned the boiler to off before bleeding. was this enough?[/quote]

 

[bab]

it the programmer u need to turn to off,10 mins before u bleed to let the over run stop.

 

[lewis_mdd]

When i say "switched the boiler off", i meant to say that i switched it off by switching the selector switch on the programmer to off (choices are "HW", "HW & CH" and "Off". Is this the way to do it?

 

[bab]

yer thats it. have u checked the header tank for the heating yet. its the small one of the two,ballvalve may be stuck up or the feed blocked.

 

[lewis_mdd]

Sorry just had to get ladder out of garage to get into loft where tank is.

header tank had some water in it.

Could it be sludge in the system?

 

[corgiman]

blocked cold feed mate, nasty job that

 

[lewis_mdd]

seems to be warming the radiators up now. Just me being impatient probably.