Question about True GDM-26 Refrigerator

1 Answer

GDM-26 humidity very high


I have a GDM-26 that I plan on using to store wine. I purchased and replaced the thermostat with the one from True designed for red wine. To get the correct temperature setting on the thermostat, I placed a wireless thermometer in the unit. The thermometer also reads the humidity and currently it fluctuates between 85%-95% humidity. This is much higher than I expected and will most likely result in mildew growth on the bottle labels.

Any ideas what could be wrong.


Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,462 Answers

Assuming fridge is at correct temp, i suspect fault is with your humidity detector. the humidity inside a fridge is a lot less than the outside air

Posted on Oct 09, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Repairman can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Repairman (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Ajust temp on true gdm 26 f

Hello Tam;

My name is Peter. I am a retired field service refrigeration technician.

The following manual link has the instructions for adjusting your unit temperature.

Jan 24, 2015 | True Refrigerators

1 Answer

Ajust temp on true gdm 26 f

Hello Tam;

My name is Peter. I am a retired field service refrigeration technician.

The following manual link has the instructions to adjust your temperature. You may also have a bad fan or thermostat.

Jan 24, 2015 | True Refrigerators

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

Wiring diagram

Should be under the wiring cover behind the vent slats.

Sep 26, 2013 | True GDM-26 Refrigerator

2 Answers

My true GDM-26 never shuts off and my drinks are frozen?

Faulty thermostat, the thermostats are cheap and wear out easy

Aug 15, 2013 | True GDM-26 Refrigerator

1 Answer

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. 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


Apr 20, 2011 | True GDM-41 Refrigerator

1 Answer

We just bought a used True GDM26 that works but it is too noisy

NONE. This is a common complaint from customers who buy commercial units for use in residential atmosphere or quiet stores. These units are made for noisy commercial kitchens, convienience stores, etc.

May 19, 2010 | True GDM-26 Refrigerator

1 Answer

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,

Aug 21, 2009 | True GDM-26 Refrigerator

2 Answers

NEED A THERMOSTAT FOR A TRUE MODEL T23 REFRIGERATOR WHERE CAN I FIND ONE? has everything at good prices i just got gaskets and temp control from them reg shipping in two days good company

Aug 02, 2009 | True GDM-26 Refrigerator

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

Not finding what you are looking for?
True GDM-26 Refrigerator Logo

313 people viewed this question

Ask a Question

Usually answered in minutes!

Top True Refrigerators Experts

Dennis Boxerman

Level 3 Expert

1218 Answers

John Tripp
John Tripp

Level 3 Expert

4654 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you a True Refrigerator Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides