A hot and a neutral coming out of the box as tested . Hook up the fan . The fan does not function . Test the wires while it is hooked up. Wires test 220 . How is this possible?

The hot was tested off the box and the neutral . Everything was correct until it was hooked up

Three 45 year electricians . Very good electricians could not figure it out yet. But they also did not spend a lot of time on it so far.

Can any of you thugs come up with an answer. Just joking.

That's probably a very tuff one over the internet.

That's probably a very tuff one over the internet.Uh, yeah.

You say "the fan". That is pretty vague for us to figure out.
I can only assume an open neutral somewhere on a multi-wire circuit.

Test each wire to ground and tell us what you get