Cold heater

[Mark2]

Hi
I've filled up the water system on my petrol ulysse but the heater still blows cold i have changed the termastat but still blows cold as if i've got an air lock. Has any body got any idears as how to bleed all the air out of this system.

Thanks

 

[fingers99]

Know nothing about the Ulysse, but I assume it has bleed screws?

Best asked in that section.