True 831972 - Replacement Defrost Timer - T TD TDC and THDC

Image of the True 831972 defrost timer
Important! - Please provide the serial number (i.e. 1-2345678) and model number (i.e. GDM-5, T-49, etc) for your unit in the comment section at time of checkout if you want us to confirm the part's compatibility with your unit. Both of these numbers are found on a tag generally located on the left interior wall of the cabinet. This video will help explain where to find this information.
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Free Compatibility Check:

We offer a no cost compatibility check for parts purchased for True, Ice-O-Matic, and Vitamix equipment. If you are purchasing a part for one of the listed brands and fill out the compatibility check we will use the information you provide to verify that the part is correct after you check out. This free service typically adds a 1 day lead time to your order but ensures that you get the correct part.
If you leave these fields blank, you waive this service & accept responsibility for your part choice. All sales are final if we do not ensure compatibility.
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Because ice can naturally form on your unit's evaporator coil during the refrigeration process it is necessary for your unit to have a defrost cycle to melt it. The True 831972 defrost timer works at scheduled 6 hour intervals to switch on the defrost cycle and melt the ice off of the coils, helping to ensure that your unit's refrigeration system works as efficiently as possible. By quickly replacing your defrost timer when it is damaged you can protect both your products and your equipment. The True 831972 defrost timer is a replacement for both the 831921 and the 831918.

  • True Part Number: 831972
  • Manufacturer Model Number: M-179