Maytag oven won't heat

Oven/Range/Cooktop Repair
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1

Please make sure to click on General above and select the correct appliance type first.

Brand: Maytag
Model Number: MEW9630DS01
Main Symptom: Neither oven will not heat
What happens & when: When I start any of the functions for either oven it will go from preheating to Lo and then stay there. No matter how long I wait it doesn’t heat up.

Error Code (if any): NONE
Parts or tests already tried: I have tested every component on the back of the ovens for proper ohms and voltage and found everything functioning properly. I have checked and cleaned every connection on the oven. I replaced the thermistor, both heat sensors and the control board. I am at a loss and don’t know where to test next.
Photos / video link:

2

If you have checked both thermal fuses on the back for continuity, and replaced the control board that has the relays that control the elements. There is not much left other than voltage. At the terminal where power come in, from black to white, 120 volts, red to white, 120, and red to black, 240.