Question about True GDM-26 Refrigerator

1 Answer

My gdm 26 is too cold. have the control on 1 and it is 33 degrees. I have replaced the temp control and it has a new compressor

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  • 211 Answers

Make sure the knob is on correctly, very easy to install wrong. Sounds silly but I find them wrong a lot. Look at the shaft, next that is a tab, the tab goes in the shortest channel under the knob. If it is in the longer channel it slips and is not accurate.

Posted on Oct 29, 2013

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Posted on Jan 02, 2017

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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.

Posted on Jul 07, 2009

  • 7 Answers

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.

Posted on Aug 13, 2009

SOURCE: Fan works, just stopped cooling TRUE GDM 26

there is a leak of gas in the system,must see where the leak is, repair it then fill the gas,

Posted on Aug 21, 2009

  • 23 Answers

SOURCE: My true Model: GDM-12 temperature fluctuates too

Install a constant cut-in thermostat. Constant cut-in temp of 37 degrees coil temp.

Posted on Jan 29, 2010

  • 88 Answers

SOURCE: Tru GDM-47 cooler evaporator icing up.

possible bad defrost timer,or control on an off is bad,were you adjust temperature...thermostat from 30 to 65.00 dollars....possible there is leak or unit is under or overcharged..more than likely under charged...possible defrost heater is not working...good luck..michael doctor airr appl.repair..service tech..843-384-8474...call if need additional help ..its free..

Posted on Mar 27, 2010

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1 Answer

Gdm-26 does not get cold, makes a clicking noise about every thirty seconds from underneath


Replace the thermal/starter relay. It is located on the side of the compressor. It clicks like if you unplugged the unit and plugged it back in quickly causing an over load on the compressor due to the high side still having high pressure and have to wait for a couple of minutes before you plug it in. The relay is at fault. Hope This Helps.

Oct 02, 2013 | True GDM-26 Refrigerator

1 Answer

I have a True GDM-26, that I determined had a bad temp control. I ordered a new control from a company the referenced the part number by unit model number. I did not take the original control to match. ...


the temperature control you need is a part# 800386. the one you got(800393) is a temperature control for a 230 volt cooler not 115 volt. it is a 230 volt control

Aug 06, 2011 | True GDM-26 Refrigerator

1 Answer

I have a model GDM-26. It's was blowing really cold, 30 degrees, then warm, 50 degrees, alternating between the two. Now it's not blowing cold at all and the coils on top do not get cool/cold. Both...


Hi,
The way you described the problem, I would be looking for a refrigerant leak... I think that it was low on charge and now it is so low that it will not cool at all...

Have a tech. find/fix the leak and recharge the unit...

heatman101

Jun 29, 2011 | True GDM-26 Refrigerator

1 Answer

True gdm 26 no longer cooling. Internal tem 80 degrees, Condensor fans running, Coil is not showing any frost or icing. Removed cover and cleaned coil and removed dust and dirt. Went out "all of a...


sounds like the compressor is not running. The condenser fans are located at the compressor. The fans in the conditioned space are the evap fans. A refrig usually does not have any device controlling the evap fans, they are to run 24/7. Freezers have other controls. Start there and let me know if I can help further.

Nov 20, 2010 | True GDM-26 Refrigerator

1 Answer

Got a true cooler with a new compressor... noticed ice on evap when checking temp contrl. replaced temp contrl and still not getting as cold as it should be... ???


probably an wrong freon level. Check that out. could be a freon leak from when the compressor was replaced. Bad weld joint could be the issue.
Let me know if I can be of any further help,.

Jun 16, 2010 | True GDM-47 Refrigerator

1 Answer

No power to compressor


Probably the cold control (or thermostat ) is bad .Unplugged the unit and bypass the cold control by putting together the two wires and wrapping them with electrical tape . If the compressor runs , replace the cold control ,if not the problem could be with the start relay.

Oct 21, 2009 | True GDM-41 Refrigerator

1 Answer

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.

Jun 08, 2009 | True GDM-12 Refrigerator Commercial

2 Answers

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.

Aug 24, 2008 | True GDM-26 Refrigerator

1 Answer

Box Not cooling


Jumping wires out is a good way to KILL SOMEBODY!!!!! You have no idea what you are doing, PLEASE unplug it and call a refer guy.

Apr 09, 2008 | True GDM-26 Refrigerator

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