Got a call no power, I was told the unit would cut on and off. Three techs before me and one electrician. Everyone was stumped

They would get weird amp draws, weird voltage, They changed fuses...checked this and that..said the disconnect was bad.. Well sometimes you have to step outside of the box..

As you can see the top left corner of the disconnect the fuse holder was pitted and making for a bad connection when engaged.

Luckily you can swap the bottom fuse holder with the top and Bingo no problems

Hero for an Hour!!! add this check to you maintenance check...