True 831993 - DTSX-IM-120-TM Defrost Timer by Grasslin

Image of the True 831993 defrost timer by Grasslin (DTSX-IM-120-TM) with an open case
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.
Distributor Stock (Usually Ships Out In 4-7 Business Days)
Add to cart

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.
Click for Available Options
Manufacturer #


A True 831993 defrost timer (Grasslin DTSX-IM-120-TM) operates the defrost system of a True freezer or deli display case. At regular points in time specified by the operator, the defrost timer switches into defrost mode and turns the defrost heater on to melt the ice on the evaporator coil. During that cycle the compressor does not run because the timer is no longer supplying power to that circuit. This prevents ice from building up on the evaporator, prolonging the life of your appliance and its components and protecting your products from spoilage. The 120VAC, 60Hz True 831993 by Grasslin (DTSX-IM-120-TM) has a metal enclosure and is rated to a maximum of 40 AMPs.

  • True Part Number: 831993
  • Manufacturer: Grasslin
  • Manufacturer Model Number: DTSX-IM-120-TM
  • Amperage: 40 AMPS
  • Voltage: 120 V
  • Hertz: 60Hz