I know you'll be thinking what a numpty, but new to this so be patient please. My heating system to the radiators was working fine but unfortunately I forgot to check diesel levels and I ran out. I have now refuelled but the system is not working now, no heat to the radiators. I have a Wabasto but unfortunately not in the slightest technically minded. I have hot water and that's it.
Is there something I have to bleed or reset to get it working again, I've tried running the engine and switching it back on via the timer but nothing.
Any help would be appreciated, it's just getting to the cold spell and I could do with it sorted.