My magic chef electric stove is showing F3 on my panel and I can't use my stove, how do I fix this

I think it means that your oven temperature sensor, or the wiring leading to it, is bad and must be replaced.

Locate a manual here:

Maytag Manuals and Literature Search (http://maytag.com/support/manuals_literature.jsp)

Parts here:

Fast Moving Maytag Range and Oven Parts (http://www.pcappliancerepair.com/maytag-range-oven.php#fswitch)
Appliance Parts Pros.com Discount Appliance Parts – Appliance Repair Parts (http://www.appliancepartspros.com/)
Magic Chef Parts | Magic Chef Appliance Parts (http://www.partselect.com/Magic-Chef-Parts.htm)
Magic Chef Oven Parts | Magic Chef Parts (http://www.easyapplianceparts.com/Magic-chef-Oven-Parts.htm)
Magic Chef Parts from RepairClinic.com (http://www.repairclinic.com/Magic-Chef-Parts)