Dual electric fans, FIRE!

I have jegs, dual electric fans, I am trying to run them completley manuel with a toggle switch on dash. I am having trouble with the relays and have had 2 electric fires so far!!. .

You've either got something mis-wired, or the fans draw much more than the relays can handle.

We need specifics-----

what specific part no/ model fans? How much current do they draw?

what specific relays?

Are you sure you are wiring them off the relay contacts and not getting them in the switch circuit?

Can you describe specifically how it's wired?

And what specifically is burning up?