It doesn't seem like the issue would only affect yellow. But until the power is fixed I would not try running the machine at all anyway, you blow the power supply in that thing and you will be out a lot more than the $750. Even if it appeared to run fine, even trying it with the wrong supply line is a terrible idea.
So unplug it and step away, don't even leave it plugged in until the power is sorted out, if you cause electrical damage to that thing the $750 won't even be a drop in the bucket after the bill you would get to fix a massive power failure.
And make sure the electrician knows these are the specs required.
Voltage: 208-240 VAC minus 10%/plus6%
Frequency: 50/60 Hz plus/minus 3%
Amperage: 12 Amps
Power Consumption: 2.746 KVA maximum