Appliance Repair Questions? Ask a Technician for Answers ASAP
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This information would lead to the defrost system having a failed component.
The defrost timer is the most common component with this type of failure.
It's part number 12 on the diagram below -
The part is available here and there is information on others who have done this as a DIY project.
Let me know if you need any more information.
You're welcome. You can post back to this question if you need any more information.