F1 Error code and beeping

Removed 4 screws holding top cover in place.
Took out knobs.
Removed side slides holding panel glass in place
Unplugged Touch panel from ECU
Pulled off old touch panel.
Used WD-40 to remove old adhesive from panel glass
Had to enlarge timer knob hole on new touch panel to fit old knob
Installed new touch panel and plugged back in
Cleaned old greasy areas that were not touched in years (anal retentive action)
Re assembled everything else

6 days and no F1 error or beeping

Very fast shipping from PartSelect.com

Thank You