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csynowie  
#1 Posted : Tuesday, January 19, 2010 9:38:43 AM(UTC)
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csynowie

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Joined: 1/19/2010(UTC)
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I replaced the door latch. the machine will not start the auto clean button lights, the cycles do not light and the options will light. On/off and delay do not work. Should I replace the door switches or the control panel? The new door latch works fine.
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denman  
#2 Posted : Tuesday, January 19, 2010 4:49:30 PM(UTC)
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denman

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Here are your parts
Replacement parts for MAYTAG MDB9750AWS Dishwasher - Undercounter | AppliancePartsPros.com

And a tech sheet and manual
http://www.servicematters.com/maytag_library/docs/16026391.pdf
http://www.servicematters.com/maytag_library/docs/16022783.pdf

Try the following
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.
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 that does nothing check the keypad switches with a meter, see the tech sheet
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