Hi all,

Been working on a mitsubishi heavy industries unit today with a e32 fault. The site has a step down transformer so I'm getting around 204v on phases to earth(three phase unit). However, I'm getting 36v at neutral when I turn the isolator on and one phase drops to around 178v. No other units on the site have any issue with the neutral and it's ok at the dis board. I've tried removing all load items from the unit indoor and outdoor, still I have this fault and voltage at the neutral! I've even changed the outdoor board as I've just decommissioned the identical unit next to it and replaced with an RZQ140.

Anyone had anything similar???

Cheers in advance!

CraigF