How to replace thermostat on a true gdm-26 - True GDM-12FC Refrigerator

SOURCE: Replacing a temp control valve on a true GDM 26 commercial refridgerator

Unplug the unit & remove the plate holding the thermostat. The capillary for the thermostat will go into a very small tube that runs into the evaporator coil. You will probably not be able to see the tube but will have to feel for it and get a good orientation for where it is located before you pull the capillary out. Try to measure the amount of capillary in the tube as you pull it out so you know how far you have to push the new one in and put some kind of tape or mark on the new capillary before you try to push it in. you might have to soap up the capillary to get it to slide easier.

SOURCE: We have a GDM-26 commerical coke machine. Only

If any of your drinks are freezing you need to adjust your temp setting. The suggested setting is 5. changing the temp setting basically tells the refrigerator to stop cooling when the temp hits a low degree, and to start cooling when it hits a high degree. This keeps your drinks not to hot, not too cold, but just right. If this doesn't work I would change the cold control altogether, it might've went bad. If you have a few minutes, locate the condensor fan (bottom) and make sure it is periodically turning on and off like it should.

SOURCE: GDM-41 Refrigerator: True GDM-41 Refrigerator getting too cold...

good day,
hope this link below will solve your problem.

ref

SOURCE: I have a TRUE model

I would say it has to be a bad thermostat. Generally I set these on 5 and they work fine. If it were a refrigerant problem the coil might freeze up but the drinks would not. Changing them can be a DIY project if you can get the thermostat.

Not fun the first time. Unplug the unit. There will be a plate with two screws that the thermostat is mounted to either on the right side or right front of the coil cover. Remove the two screws and pull the plate and thermostat down in one piece. Unplug the two wires from the stat and remove the plate from the stat making sure to note which way the plate and thermostat are oriented. The thin capillary from the stat runs up to the back of the coil. You have to reach your hand into the opening created by removing the plate and feel your way to the capillary entrance at the coil. You may be able to just see it through the hole. Make a good mental note of its position in there and pull the old capillary out. Measure how deep the capillary was in there and try to get that far in with the new one. I generally put a little piece of tape on the new capillary about where I want it to stop at the coil. You just want to make sure the capillary is clear of any wires and doesn't rub against anything in its routing. Reinstall is reverse of uninstall.

SOURCE: I bought a used True

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