Question about True TSSU-48-12-ADA Sandwich/Salad Unit, 12 Cu. Ft., 4 dp Clear poly pans, 2 doors, 4 Shelves TSSU4812ADA, TSSU48-12-ADA, TSSU-4812-ADA, TSSU-48-12ADA, TSSU-48-12-AD, TSSU-48-12-A, TSSU-48-12, TSSU-48

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TSSU4812 refregirator making clicking sound and not cooling

My TSSU4812 is not cooling. It is blowing warm air (not cool air) - I cannot tell if compressor turns on or not (I don't know how to tell - it might be turning on and off since it gets hot). Here are the steps I took to diagnose so far: 1) Cleaned the dirty condensor. 2) Keep it unplugged for 10 - 20 minutes. Plug it back in. 3) All fans inside and outside work. 4) Hear a clicking sound. 5) Wait about 20 or 30 seconds. 6) Hear another clicking sound - withing 1 or 2 seconds, another clicking sound but this this time a little different (like an "electric" sounding click) 7) Wait another 30 seconds, same two clicks almost a second apart (as in number 6 above) And the cycle continues. Is it the relays or the capacitor that needs replacement? Also, after leaving plugged in compressor feels hot - can touch for about 2 to 4 seconds without getting too uncomfortably hot. How do I diagnose more to see if its low on freon, bad relays, bad capacitor, or compressor is bad? Thanks

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  • 39 Answers

Without a compressor analizer you will need to check the winding
resistance. or you can just cross your fingers and hope the relay
and start capacitor are the problem. Sounds like the condenser coil was plugged so you could possibly have a locked up compresor.I doubt it is low on refrigerant charge.

Posted on Apr 18, 2013

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Posted on Jan 02, 2017

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geemarie
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SOURCE: true freezer

Just to make sure--is the freezer plugged into a GFI outlet and is the little red button pushed in? Is it on it's on circuit and has it thrown the breaker?Have you tried a different outlet? Do you have any lights at all- showing power? did you have a power outage? If you had apower outage and it ruined your freezer, your homeowners insurance may cover it. I would have it looked at for an estimate.Ask ahead what a service call costs, and make a decision from there.

Posted on Aug 18, 2008

  • 1253 Answers

SOURCE: Freezer Not Fan not running!

Most all commercial freezers have some sort of fan delay/ defrost termination device. Commonly called a "Klixon" (pronounced clicks-on). It is a device that is attached to the evap. It's function is to terminate the defrost cycle when the evap reaches a certain temp, say about 50 degrees or so, to ensure there is no build up of frost/ ice on the evap. It then allows the compressor to run, and cool the evap down to a reasonable temp., say about 20 degrees, and then let the evap fan come on. It prevents overloading the compressor during a high temp condition, and it also prevents circulating warm air left from the defrost cycle. I believe this device is most likely your problem. With no air circulating, the box will no cool down.. I have seen them burn and/or slhort internally. They can come apart. too. I would look here for that problem. the True manufacturing website does not give alot of info on this piece of equipment, such as a wiring diagram but manuals are available.
Check this out and let me know how it comes out.

Posted on May 21, 2009

  • 40 Answers

SOURCE: fans inside freezer will not turn - no cooling -

The fans are controlled with a clixon that has a cut in at 5 degrees, and cut out at 20 degrees. If the unit is running and the fans are not comng on then I would have to say you are out of freon. But your condensor fan could be running and the compressor NOT be running which could be a problem with your compressor. Find out if your compressor is running by taking an amp draw. If compressor IS running then you are low on freon. If the compressor is running and your evaporator coil is cold and your fans AREN'T coming on then your clixon is bad.

Posted on Sep 26, 2009

  • 193 Answers

SOURCE: replaced run cap, motor windings ohm out good,

Probably locked rotor. This happens sumetims when the connecting rod breaks or seizes up on the crank shaft. Seperate your power cord ar some point so that you can put an amp meter around just one of the hot wires. It should be 10.2 amps maximum. I think you will see it spike to 25 amps for 2 to 3 seconds when the compressor tries to start. That almost immediately kicks out the overload. This compressor is not rebuildable. so it will require a new one if it is what I think.

Posted on Sep 28, 2010

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  • 185 Answers

SOURCE: compressor runs bypassed thermostat with wire that

If you have just turned it on it takes awhile for the fans to come on. The evaporator coil has to get cold about (10 to 20 degrees) and make a klixion fan switch to turn the fans ON.... Is the evaporator coils getting a frost pattern on them??? If not then the system may be low of Freon.. If the coil is completely froze up and you are getting frost back to the compressor..... then you have a bad fan switch or a door switch.... If you have a wiring diagram you can trace out the wiring.... It is usually down by the compressor or control panel... hope this helps.

Posted on Mar 30, 2011

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Hello Deena;

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

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