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True commercial 42 cubic foot refrigerator is keeping a temp at 52 degrees, it should be 34-40. Whats the problem

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Check the coindenser coil underneith ther unit for a dirty condenser coil

Posted on Feb 23, 2009

  • Todd Born
    Todd Born Feb 23, 2009

    check the coindenser coil underneith ther unit for a dirty condenser coil

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How do i chage the temperature on a true cooler gdm 49 florial cooler


True GDM-12 Refrigerator... Repair Questions - Fixya

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Recent True GDM-12 Refrigerator Commercial questions, problems & answers. ...Where is the temp control on the older (14 yrs or so) on GMD-12? True ..

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True t49g side by side not defrosting


True's T-49G is not equipped with a defrost timer as it is a medium temp unit, so I would suspect the temperature control may be defective. Part #800393 is commonly used for the True T-49G, though it's best to check verify with model number and serial number. It could also be as simple as adjusting the temperature dial a little bit. The target temperature range is around 36 degrees Fahrenheit.

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What temp should the fridge and freezer each be?


According to FDA safetey specs bacteria can grow at 40 to 140 F degrees .Refrigeration must be below this number but above 32F to keep from freezing. I maintain commercial refrigeration and they run at 34 to 38 F degrees. I have deep freeze set at -10F which keeps ice cream very solid but can go up to +2 F which renders softer ice cream...

Jun 25, 2009 | Kenmore 64802 Top Freezer Refrigerator

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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

1 Answer

Evaporator unit keeps on building ice. question what is the nornal operating pressure on low side and on the high side for truee freezer using 404 refrigerant


I'll try to give you the "Readers Digest" version.
First, make sure there is no ice build up on the evap. Light frost is O.K. as long as it does not effect air flow. (Very Important). All fans need to be running. Again, an air flow thing. There should be some product in the box but not too close to the evap. Again, an air flow thing.
The expansion device can effect your pressures to some degree i.e. Cap tube vs. TXV.
As a general rule of thumb, which I use almost everyday when it comes to pressures:
Low side is based on the temp difference between evap temp and condition space in the box. In freezers, it is almost always 10 degrees. If the box is 0 degrees then the evap needs to be at a minus 10 degrees. That is a pressure for R-404A of 24.5 psi. This only holds true when the temp in the box is approching set temp. I would say, about +10 degrees. 0 Degrees for the evap for R-404A is 33.5 psi.
High side should be ambient temp +30 degrees and then convert to a pressure for the refrigerant.
Example: 75 degrees in the room, +30 degrees equals 105 degrees. Now 105 degrees converted to a R-404A pressure is 253 psi. This will get you very close to the desired high side pressure.
I would look at low side first to see if it is within reason. Don't let the high side get too high. Increases the compression ratio and overworks the compressor.
Your icing problem could be a defrost issue and not a refrigerant charge issue.

Good Luck and hope this gets you started.

Apr 07, 2009 | True 49 cu. ft. / 1388 liter Commercial...

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True Freezer


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

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True commercial freezer


The ice could be preventing the freezer from freezing properly, try defrosting the unit. if this does not help then this could indicate a more serious problem like a bad temp sensor or refrigerant leak.

Apr 27, 2007 | True 52 cu. ft. / 1472 liter Commercial...

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