Here are the breakdown diagrams and 02-Controls parts for Maytag MSD2554ARW - AppliancePartsPros.com
Remove the cover #21 off and locate in the right rear corner the defrost timer shaft in the small opening.Use the flat screw driver to slowly turn the shaft CW for one full turn or until you'll hear the click.
If the fridge kicks on - replace the defrost timer #13
Part number: 68233-2
If not - replace the cold control (thermostat) #3
Part number: 61005516
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