The bottom spray arm does not spin during wash. The spray holes are clear and it spins freely by hand. Any suggestions.
Here are your parts
Replacement parts for MAYTAG MDB7600AWB | AppliancePartsPros.com
Here is a manual and tech sheet and bulletins
http://www.servicematters.com/maytag_library/docs/16021814.pdf
http://www.servicematters.com/maytag_library/docs/16023212.pdf
http://www.servicematters.com/maytag_library/docs/TDD-0009-S.pdf
http://www.servicematters.com/maytag_library/docs/TDD-0008-S.pdf
Could be the pump is starving for water or a problem with the pump itself.
Starving could be caused by a water inlet valve problem or dirty filters.
Check the water level after a fill, it should be just under the heating element. Not sure of correct level on this unit perhaps someone else will confirm/deny this.
Often caused by a partially blocked inlet filter screen in the valve.
Dirty filters check and clean.
Pump you will have to take it apart and check.
Thanks for the advise