Need to change oven from 440 3 phase to 220 single phase hobart cn90 oven

The CN90 is an electric oven.

you must understand this : your electric oven must be indicate if it is a single phase( use 3 wires for 230 2 hot wires + 1 Neutral see the diagram like dryer? you must sure about this. Normally any appliance for home are single phase NOT 3 phase.

2) If you electric oven, say 3 PHASES( use 4 WIRES, 3 hot wires+1 Neutral wires) this for industrial application +comercial NOT for home

However if you system is 3 phase you must need to install 3phase transformer.

my hobaroven csd 2013g i cant opreate it pls help me

No they usually run 2 minutes one way and 2 minutes in opposite direction to even out the baking.
Unless its erratic then something else is wrong.

Here is your answer :
From 3 phase con you took just one phase of this 3 phases and a blue vire and earth wire you should use allso! for the safety against electrick shock,
I hope this will help you

Have you tried shutting down all power to your oven at the electrical panel, waiting 10 minutes and then returning power to the unit? Procedure could reset the defaults. Best of luck.

ONLY, If you care to replace ALL the elements, The control circuit may have a transformer with mulitple taps to suit 220.If not, the control circuits will have to be changed to suit. 200V
Sorry for the bad news.

Switching phase on products are usually up to UL. You need a good tech and it can be done. If it is marked 3 phase and you make a single, the responsibility falls on the person that did the conversion. Components should be similar from 3 phase to single, just use OEM parts!

Hi,
Are you sure it says that in the manual? I have a single phase. Look at the plate on the motor on the back. If it is 3 phase, forget about changing it over.
Charles

The only difference should be the elements. Consider installing a buck-boost transformer. It may be cheaper.

The Hobart part number for the 240 volt element assembly is --
# 342170-00002. Your local Hobart can get you a price.