Neutral issue on commercial oven

[Williehbt]

The electrician apparently didn't run any wire. He told others he did but it is the same old wire. I made up a cord with alligator clips and used an extension cord to get power to the control circuit and it works. We're going to just have him run a dedicated 120 circuit to the oven and solve this.

 

[LarryFine]

View attachment 2566544

There is no conductor in the main neutral lug!

 

[Williehbt]

There is no conductor in the main neutral lug!

The wire on the left is from the conduit

 

[LarryFine]

The wire on the left is from the conduit

Maybe that's where the problem is; the two small white wires in that lug.

I still think you should check the existing neutral pathway wires and terminations first.

Wait: Is the breaker enclosure in the lower picture the supply's panel or the appliance's?

 

[Williehbt]

Maybe that's where the problem is; the two small white wires in that lug.

I still think you should check the existing neutral pathway wires and terminations first.

Wait: Is the breaker enclosure in the lower picture the supply's panel or the appliance's?

The breakers are the appliances

 

[LarryFine]

The breakers are the appliances

So, the neutral break is between the breaker panel and this panel?

 

[Williehbt]

Yup, somewhere between the panel and the oven. The electrician never showed up. Found out they flat out lied about pulling new wiring. The customer has been down for a month and it's gone up the ladder so we had to get this thing running ASAP. I ran some mc flex to get a neutral from the proofer control box next to the oven.

So, the neutral break is between the breaker panel and this panel?

 

[LarryFine]

Yup, somewhere between the panel and the oven.

Do you know whether there are any J-boxes in the run?

If so, look in them; if not, pull on either end.