The Fresh Loaf

A Community of Amateur Bakers and Artisan Bread Enthusiasts.

New Hobart N50 tripping circuit breaker

jeremyj's picture

New Hobart N50 tripping circuit breaker

We recently replaced a 15+ yr KitchenAid Mixer with a brand new Hobart N50 in our home kitchen

We have used it twice and found that both times it has continually tripped the circuit breaker on the machine.


I believe the first time a cream cheese frosting was being made, the second time it was a batch of cookies.  


After reading how powerful these machines are, it is disappointing to have circuit breaker tripping on such simple tasks.  It is infuriating to know that our cheap sunbeam (or something similar) hand mixer powered right through the items to finish the tasks.


I have called Hobart Service and since we are not a business, they refuse to talk about a repair.  


Has anyone else had a similar situation happen? Or things to look at?




sbuczkowski's picture

Can't speak to the Hobart mixer side of things but there are a few things to cross off the list apart from that any time circuit breakers or RFI outlets trip:

- What size circuit breaker is tripping? Is the circuit RFI protected?

- What else is on that circuit and running (especially during the two times you mention) (and how does the total current draw for all things running compare to the breaker rating)

- What is the current draw on the new mixer vs. the old?

I used to have microwave, toaster, and espresso machine one a single non-RFI circuit on one side of my kitchen and could run all three simultaneously without issue. Introduced an RFI outlet to that circuit and could still run all three but the circuit would trip almost every time the toaster popped because of the arc formed at the heating element switch. The arcing wasn't new but RFI circuits are more sensitive to it. I can still run any one device without issue and can usually run the toaster with either of the others; it's the combination of all three that puts the circuit over the line when the toaster pops.

I would try the mixer on a different circuit and also make sure it is the only thing running on that circuit. If it still trips, see if you can find information on or measure it's current draw in operation and see if it is just taking more than your kitchen circuits are wired to provide.

deblacksmith's picture

I assume from your description that the circuit breaker we are talking about is the one on the machine.  It should NOT be tripping unless there is a major problem with the mixer or it was wired for 230 volt single phase and not 120 volt single phase.  The spec sheet says they can be run on both voltages - but I assume some internal wiring has to be switched or and internal switch has to be changed.  If new it should be under warranty (1 year) and they should replace the whole machine.  Who did you buy it from?  They should take it back and replace it with a new one.

jeremyj's picture

You are correct, it is the machine circuit breaker that is tripping.

This morning we were mixing a double batch of chocolate cookies and it was tripping when trying to blend the dough.  

We moved the mixer to another circuit in the kitchen to make sure that it wasn't that particular area but still had the problems.  


We purchased from Webstaurantstore and have been in contact with them, but thus far very little actual help.


deblacksmith's picture

I have had very good luck purchasing from Webstaurant for our church.  Been using them since 2012,  We hand a ice machine that had a major problem in its first year and they help resolve it with the manufacture.  I have used them mostly for small wares and supplies.  We are in far western NC and have no local suppliers.  Everything has to come out of Atlanta or Knoxville for regular food service supplies and they have $ 300 minimum so the folks at Webstaurant have worked well and we only order a few times a year. 

dave148's picture

Did you ever get a resolution to this problem? We have the exact same problem, right down to replacing the 20+ year kitchen aid with the Hobart from the same retailer.

If you haven't been able to get anywhere on this, my next action is to double check the current going to the breaker, and make sure it is actually getting to 3.5A when blowing. However, since 3.5A seems awfully low for this type of machine, I was going to try to figure out the gauge of the windings on the rotor, then upgrade the breaker to something closer to it's actual limits. If the gauge happens to be extremely fine, I guess I'm stuck.

richkaimd's picture

Call them at the number on their website:

Old Man in the Cave's picture
Old Man in the Cave

Just a thought: It might actually be a defective circuit breaker on the machine itself.


OrrenHsieh's picture

Hi... I went all thru this thing and found nothing electrically wrong. Took several readings all over, plus I also found that it functions on every speed fine but speed 2 (has 4 total) thus I believe it to be something internal, perhaps gearing. These industrial dough mixers are rather complex I must admit. He is going to get a service tech to come look at the unit.