Haunted Amana gas range

Oven was unable to get over 300 degrees no matter what it was set at. I replaced the temperature probe. Same problem.

I replaced the electric control unit (Eaton KRC - Gas) and got an F3 code. So, for a laugh, I reattached the old control unit and now it too gives me an F3 code too ! As stated earlier, the old control unit worked and gave no F3 code.

:confused:

I’ve disconnected the power. I’ve checked all the probe wiring and connectors for continuity. No problems detected.

I’ve heard enough beeping to last a lifetime. What do you suggest ?

Thank you