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Context: We've recently installed a Viking Legacy II hot tub, with an outdoor disconnect, and indoor subpanel. After troubleshooting various issues, I've exceeded my knowledge and am in need of help figuring out what the issue is.

Connection Details: Using 6 gauge wire, running between each component, we've connected the Hot Tub to the Disconnect, the Disconnect to the sub-panel with a 60A GFCI Breaker, and finally that's connected to a 60A Breaker in the main. I've tried 3 different GFI breakers and they all tripped in the same way, when power is supplied to the breaker and it's flipped on the breaker trips. Originally this was thought to be caused by the ground and neutral connecting, so I installed a ground bar in the subpanel and separated them (this was also hazardous in it's original state). Finally with the disconnnect on or off the the breaker still trips at the subpanel when powered on.

Components:

  • Viking Legacy II Hot Tub - Owners Manual Link (Note the ground wire in this photo is attached outside of the box to the ground bar, it has been moved inside the box and attached as directed)

Hot tub wiring

  • Halex Disconnect - HNF60R

Disconnect

  • Homeline Sub panel, 100A 6 spaces 12 circuits - HOM612L100FCP
  • Square D GCFI Breaker with Neutral - QOE260GFINM

sub panel

hhsnopek
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1 Answers1

15

You appear to have connected the Neutral wire to the ground lug at the disconnect. That makes a ground fault.

Connect the ground wire to the ground lug, and connect the neutral wires only to each other, with an insulated connector.

That sort of disconnect is primarily intended for pure 240V loads without a neutral. It does not HAVE a neutral lug.

Ecnerwal
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