Maytag quiet series 100 - machine runs, but all the control panel lights are indicating on so that I can't tell which part of the cycle is in progress and the machine will run for hours without shutting off

https://www.hunker.com/13407741/how-to-clean-a-maytag-quiet-series-dishwasher-filter


How to Clean Maytag Quiet Series Dishwasher Filter Hunker

sounds like a burned belt, once the belt is burned from being loose, the burnt spot gets hard and the pulley will not catch to make the machine run , replace the belt.

Check the door switch.

Where is it leaking from?
What is the complete model number?

their is power to the dishwasher but the control panel does not light up and the machine will not start or run

We had the same issue with our Maytag quiet series 200 dishwasher. The Start/cancel button would not work all the time. We ended up removing the front panel from the machine and on the backside of the panel there is a plastic ultra thin ribbon cable that runs from the computer box to the push button control panel. We wiggled the ribbon cable and the start button began to work, but only if the ribbon cable was held in a certain position. So we super glued the cable in that position and it's been working consistently now.

Upon closer inspection the ribbon cable appeared to have 3 or 4 very tiny dark spots on the wires.
That would indicate to me that somehow moisture slowly eroded the tiny wires and bending the cable made the connections touch again, but for how long it will work like this is anyone's guess.
Also, it appears that the ribbon cable is permanently attached to the push button control panel. So you can't replace the ribbon cable itself without buying the hole front panel.

Have you checked the breaker to the unit? if not make sure you are getting power from the breaker to the dishwasher, if you are then check the wiring where it goes into the dishwasher to make sure you have 110 volts to the unit. if this does not fix it, i think it will leave me a msg and i will tell you more things to check, im not sure but there also may be a reset button on this unit

Hold down the heated-dry button for 3 seconds and the light will clear.

Sounds like you have a bad Control Board

http://www.partstore.com/Part/Maytag/Maytag/MDB6600AWW/Maytag/Maytag/99003160/New.aspx

But with the price it cost, you might be better off buying a new dishwasher, preferably a different brand, cause that washer has some bad reviews

the control panel is locked. dont know your model number to tell you what buttons you hold to unlock it, but some models have a lock button you hold down for 3-5 seconds. other models just have a lock light, and have a line indicating 2 buttons that you hold down for 3-5 seconds. if you cant find which buttons to hold down, refer to your owners manual. once the control panel is unlocked, it will run again. shane