My Maytag dishwasher has no power to the front control panel. I checked the door switches and found that they are functioning properly. I do have line voltage going into the circuit board. That appears to limit the problem to either the circuit board or the control panel. How can I determine which is the problem?
Here are your parts
Replacement parts for MAYTAG MDB5600AWW | AppliancePartsPros.com
Here is a service manual and a tech sheet
http://www.servicematters.com/maytag_library/docs/16021814.pdf
http://www.servicematters.com/maytag_library/docs/16023063.pdf
Have you tried disconnecting power from the unit for an hour or so to see if it will reset?
Since all switches are dead odds are high that it is the control board.
I would check the ribbon cable into the board, see the Tech Sheet for the ribbon cable pin outs.
If the ribbon cable is the type that just has the bare cable at the end (no connector). I would clean it.
RIBBON CABLE CLEANING
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 the keypad checks out OK then I would replace the control board.
Cleaning the contacts on the ribbon connector where it attaches to the circuit board did the trick.
Thanks.