Baisi boiler not working after drain & refil

[thepurpleangel]

I'm looking for some help diagnosing a problem with my boiler after I drained the system to replace some radiators.

After refilling the system, I tried turning the boiler on but consistently got a fault - the boiler was not detecting water.

After fiddling around turning the system on and adding water I managed to get it to fire up if the pressure reached 2 bar but got a new fault when trying the water, that the primary circuit was at excessive temperature.

This only happens if I run the hot water together with the heating, running the water alone just results in the original fault - not detecting water.

The temperature guage is also unresponsive and sat permanently below 0.

Any help to rectify this would be appreciated! If there is air in the boiler, I have no idea how to purge it, I've tried The pump but that just spews water.

Thanks in advance!

 

[Agile]

Probably just air in the boiler.

But you have not told me the model!

Tony

 

[thepurpleangel]

I hope so but I'm still unable to get the air out. The model is one of:

M90D:24/28S(R)

Should the AAV move? It seems totally stuck and won't budge but I don't want to force it in case I'm doing the wrong thing.

 

[Agile]

If it e type cap then this should be loose/

Tony

 

[thepurpleangel]

I'm not sure what an e type cap is, it looks pretty much like this:

http://www.boiler-m8.co.uk/media/ca...8eab33525d08d6e5fb8d27136e95/2/6/260-2500.jpg

apart from being black.

I'm assuming the knob at the top should turn and the hole should not be clogged, should I get some grips in there and try to turn it?