Oven shuts off when try to use above 425 degrees

Oven/Range/Cooktop Repair
1

Brand:Whirlpool
Model Number: WFG320M0BS3
Main Symptom: Oven shuts of when try to use above 425 degrees also if use oven timer while oven is on it shuts off.
What happens & when: It turns off and the light starts blinking

Error Code (if any):
Parts or tests already tried:
Photos / video link:

2

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