Question about True 598-TSSU7218 SandwichSalad Food Prep Table 72 38 Long 3 Doors 18 Pans

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TRUE Salad Unit freezing food/compressor will not cycle properly

Replaced thermostat on unit(True TSSU 72-18) because old one would not cycle the compressor, thus freezing food . Now compressor cuts in at too low a temperature at the lowest (highest temp.) setting . By manually shutting off the thermostat and setting it back to the highest temp setting again, the compressor will remian off until about 38F then it restarts and begins the freezing process again . This unit does not have a tube in the evaporator to slide the temp probe into . The last few inches of the temp sensor probe are coiled about a half inch in diameter and inserted between the cooling fins of the evaporator . Is this correct ? Any assistance in this matter would be greatly appreciated ! Thank you ,
Mike Sena

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  • True Master
  • 1,150 Answers

Double check to see that you do have in fact, the correct thermostat. I have found a chart that shows that the differential is all over the board. There is a way to adjust these thermostats but is very time consuming and if you are not a refrigeration tech, you may struggle with the procedure.
https://www.truemfg.com/Support/Resource-Library

Posted on Jul 31, 2017

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Posted on Jan 02, 2017

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bobicehouse
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SOURCE: Replacing temperature control on a True beverage cooler

Remove the doors, then the evaporator cover. Just be careful.

Posted on May 20, 2009

jeffbvegas1
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SOURCE: True Freezer

Hopefully you were good on cap tube length is this is an important aspect of this system.The length must be matched

Posted on Jul 01, 2009

  • 1 Answer

SOURCE: True TS-49 Refrigerator freezing food

NEWER T-49 s DO NOT HAVE ANY DEFROST HEATER OR TIMER OR CUTOFF'S All solutions involving repairs on these items are bogus. The defrost occurs when the compressor shuts down normally. During this time,since the fan never stops, it should circulate above freezing air around the coils and a slow defrost may occur. It is a poor system at best, and does not work well if the compressor runs a lot. MY erratic cooling was fixed by removing the copper sleeve and cold control probe from the evaporator(cold coil on top) Polish up the copper tube and the probe, reinsert and bend the copper sleeve very slightly so that it fits snuggly into the evaporator. Mine was very loose and not making good contact with the metal evaporator, giving erratic control of temperature.. Good Luck!!

Posted on Dec 22, 2009

  • 7 Answers

SOURCE: true tssu 72-18 is freezing

did you make sure that you installed the end of the coil wire into the evaporator, it should go in about 8 inches at least, if you did that and have the correct thermostat, the make sure your fans are working. Miles

Posted on Jun 28, 2011

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The drain tube that drains out the water is plugged. It runs from inside the cabinet to under the refrigeration unit outside the cabinet. Try to clean it out with a can of compressed air used to clean keyboards and see of that works.

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I bought a used True commercial refrigerator model GDM-41 the temp. remains at 60* no matter if i move the thermostat up or down it remains at 60* I noticed that the thermostat was replaced and has a...


Hello Margarito539,

I understand that you purchased a True GDM-41 merchandise refrigerator and you are having a problem with the temperature. The thermostat you are currently using is an in-line thermostat and is not the proper thermostat for the unit I would suggest that you follow the below link and purchase the proper thermostat for the unit. http://restaurant-equipment-parts.com/part/true/800393 the cost is $36.98 and is an OEM part.

You also may need a service tech to check out the freon in the unit. The unit uses 134A freon and must be within a few ounces of charge other wise it will not work properly. As the unit is keeping it 60 degrees, before you do anything make sure that you can hear the compressor running as this is not a cheap fix, however may be worth the cost for the unit you have. The compressor should be humming if it is not and the unit has been plugged in for a while, unplug for about thirty minutes and let the compressor cool. Once thirty minutes has passed plug in and see if the compressor is humming.

After checking the compressor you have two choices if it is humming call a service tech and have them check the freon charge and thermostat or change the thermostat and see if the compressor starts cooling the unit. If the compressor is working then the box is well worth fixing, if the compressor is not working you need to decide if it is worth fixing. A used unit with a one year parts and labor warranty costs $2100 so the repair should not cost over $1000 to be economical.

Thank you for choosing FixYa.com

Justin

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1 Answer

True tssu 72-18 is freezing the food. we replaced the thermostat and still freezing. any suggestions?


did you make sure that you installed the end of the coil wire into the evaporator, it should go in about 8 inches at least, if you did that and have the correct thermostat, the make sure your fans are working. Miles

Mar 22, 2011 | True 598-TSSU7218 SandwichSalad Food Prep...

1 Answer

Compressor runs continuously freesing foods. Thermostat?


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