20 Most Recent Maytag 24 in. MDB4000 Built-in Dishwasher - Page 8 Questions & Answers

Reset is by disconnecting the power to it. If it is hard wired into the electrical box, you have to shut of the breaker and then wait a minute and turn it back on. When you power it back, you should hear the pump come on for a minute as part of the diagnostic. If it does not come one, then you have to check the main control, the transformer, the control board.

Clean the mesh filter at the bottom of the tub.

That light will remain on until you remove the dishes that are in there so that you know what is inside is clean and not dirty.