Maytag quiet series 300 will not start

I too have an old Maytag MDB6601AWW
all the lights/buttons on my keypad work with the exception of
the center (3)
autocelan start/stop delay
I’ve read thru a bunch of these forums…
but I can’t find any info on how to get the machine to give me an error code…

Is it my circuit board?
Is there just something simple that is not “locking” the machine so it can start?
HELP would be appreciated!
tks
joel

See the attachment for the tech sheet.
It is for an AWB but should be the same or close to a AWW

Check the switch outputs at the ribbon cable with a meter.
Looks like track 10 is common to those 3 switches.

Connector Cleaning / Checking
Unplug the unit
Open it up
Remove the ribbon cable from the keypad to the control board at the control board.
Clean the edge connector. Use electronics contact cleaner or isopropyl alcohol.
If it is the type where there is not a connector just the insulation is removed, it can be cleaned with a pencil eraser. Do not use an ink eraser as it is too abrasive.
Check the tracks in the ribbon cable for hairline cracks. A magnifying glass helps here.
Would not hurt to clean the connector on the board. Use electronics contact cleaner or isopropyl alcohol and a tooth brush. Be gentle and do not reconnect till all the solvent evaporates.
Reconnect everything and give it a try.

If everything checks OK then odds are that it is a control board problem.