Question about True 52 cu. ft. / 1472 liter Commercial Freezer TM-52F

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True commercial freezer

Freezer not freezing, ice on coils,temp is keeping around 30-31

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Re: 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.

Posted on Apr 27, 2007

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Coils ice up

My best guess is that the drain has some debris in it and the defrosted water from the coil is being picked up and being re-frozen against the coil and freezing up the drain pan. The defrost timer may have failed, the defrost termination button fastened to the coil may have failed, the defrost heater on the coil itself may have separated from the coil or just outright failed. Hope this helps and good luck.

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I have an AHT Salzburg chest freezer and it's stuck in "chilling" mode and not getting cold enough to freeze anything. It's a commercial freezer and says it has chilling and freezing modes but how do I get...

pull the plug and let it defrost. ck the drain for water. it maybe pluged. after 2 to 4 hrs. plug it back in and set the temp. to -10 degrees f . fill small dish or bowl with water and see how long it take to freez. if it takes longer then 4 hrs you may need freon or have a compreesor problem, or defrost timer .

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Freezer temps can very, but as we know freezer temps can run from +32F to -40 or more on commercial boxes with the different freons. But back to you, I would say from my charts on low, med., temp refrigerators, you should be around +8F to -5F. When I mentioned +32, we know that's when water starts to freeze, so you want the freezer to be much colder then that.In order to keep ice-cream frozen, you must cycle around -5f to -10f.I sincerely hopes this has helped you out, as you will I am sure get many different opinions, but +8 to-5 is excellent for this box.

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We have a true T49F freezer and the evaporator fans are not running. The compressor is running on startup. The coils are cold. But are freezing up. Shouldn't the fan be on, or does the cabinet have to...

Freezers have a sensor that is referred to as a "Fan Delay/Defrost Terminator". It senses the temp during the defrost cycle. Usually, when the evap temp reaches about 50 degrees, there should not be any frost or ice on it. This device terminates the defrost cycle. It also keeps the fans off so warm air is not circulated. When the evap gets to about 20 degress or so, the sensor switches on the evap fans. If the fans are not coming on, either the sensor is bad or the evap is not reaching the proper temp to cause the sensor to turn on the fans.

Hope is helps to clear up some things and point you in a direction as to what might be going on.

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