[Frank Kluna]

Cannot Clear F1 Fault By Procedure Previously Recommended
Oven Works Fine
Does This Mean I Need A New Back Assembly Panel?
Thank You For Your Help
Frank Kluna

[PS Staff - Sheila]

If the oven is working and the time is being displayed do not worry about the fault code.

Here is a link to your oven model w156.

[Frank Kluna]

What Do I Do About The Continuous Flashing And Beeping?

[denman]

I would disconnect/reconnect the plugs/harnesses to both boards.
Check them for any sign of corrosion (often a brown coating on the pins)
Clean with a toothbrush and a little electronics contact cleaner
Make sure they are dry before reconnecting
If you have a ribbon cable from the touch-pad to the control PCB, the edge connection can be cleaned gently with a pencil eraser. Do not use an ink eraser.

Here is a link to more help
fault codes, F1, F2, F3, F4, F5, F6, F7, F8, F9, F0, FC, common fault code meanings and how to correct