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
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.
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