Mother of all airlocks..?

[Tony Smith]

Hello.

Today I refitted a rad,bled it, all well,turned system back on, ran for a while rads did not get hot at all,boiler shut itself off,and it looks like I have lost all the water from the upstairs rads, tried to bleed them, just got a slight hiss, checked header tank..ok, pump also appears to be running when system is turned on.
Any ideas please.
Boiler is Ideal Classic
Pump is a Wilo Gold
Honeywell V4073A

Thanks
Tony

 

[gasandoilman]

sound like you got a blocked feed
your tank is full but the feed pipe is blocked where it enters the heating system

 

[Tony Smith]

I had a trawl around the 'Blocked Cold Feed' yes, my system displayed that fault, now sorted.
Many thanks to all who posted advice on how to resolve it.

Tony