So i now went and purchased a fan assembly, along with a new relay.
I put the relay in, connected the fan and tested the system again. But even the new fan has not kicked in either, not on stage 1 or 2, and yes the dam thing STILL boils the coolant.
I've checked everything i can think of, even checked the oil and water throughout and there is no contamination either way, nor has there been any smoke out of exhaust etc.
I've bled the system via valve in rubber pipe by top of rad, and the 8mm bolt in metal pipe by thermostate, so i think thats correct too.
But to be honest, im now stumped, i dont know what to try, do or change. Spent a small fortune and a lot of time on this problem and feel like its one step forward - two steps back.
Am i doing something wrong or overlooking something etc as the more i do the worse it gets.
Looking for some much needed major guidence and help.
Eagerly await your reply.