I have a commercial reach in Turbo Air 2 door freezer that is 1 year and 2 months old. The compressor is going out.....Why would it happen?

That is what it is supposed to do. It is called cycling and switches off when the set temperature is reached. It is a commercial freezer, so if the door opened and closed often, that is normal?

Commercial freezers and fridges have an item called a 'Clixon' that cuts power in the case of the compressor overheating. When was the last time the fins on the compressor coils were cleaned?

Could also be a bad door seal letting cold air escape. When you close a freezer door on a unit like that, it should be really hard to open straight afterward due to the suction.

Could be a faulty thermostat. Turn the temperature to the warmest setting and see if it still does it? If it does, you need a new thermostat.

I just retired after 52 years in catering.

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Not an expert opinion but seems that either you have low refrigerant and maybe the compressor is not therefore starting or the compressor has an issue, or the power to the compressor is missing.

Did they test the thermostat? I would think that the compressor would kick on before you got that much of a fluctuation, unless the thermostat is not sensing the change fast enough.

The run and start capactiors and relay, did they give you a reason for that? When the compressor kicks on does it surge the power? Light dim or something? It is hard to guess without being able to put an o'scope on your machine to be able to see what it is doing, but just based on what your write-up was, I can't see the parts you said they want to replace will fix the problem.

Hi, Please set your thermostat a bit warm and observe the compressor. Also check your freezer for leaking.

When the temp gets back down to running temp the vacuum will return if the gaskets are properly installed.

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

things that need checking:
refrigerant level. Super heat. Condenser clean? Compressor effeciency.
These are things that an experienced tech can check. If you have some experience and gages/ tools, I can give you some things to do but most of this requires experience.
Let me know if I can be of any further help.

make sure the compressor is running if not change over load and relay

Call Rick at Restaurant Parts and More in Ohio. Give him the model and serial numbers and he can match what you need. FYI, most Turbo Air freezers are also Masterbilt. Turbo Air does the private lable thing for Master bilt.

Hope this helps.

If it's frosted up, it's best to defrost manually with heat gun. Find the timer and advance until it goes back into defrost. The timer looks like a residential fridge. It cut the compressor off and the heaters on.
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I have worked in a lot of kitchens and don't really have a preferance. The top mounted compressor is better for you as it is easier to service and leaves more cabinet room. Dirt and dust also stay near the floor. YOu won't have to clean the filter as often up high The disadvantage to this in a kitchen is that kitchens are hot and up high is hotter still. Order a cheaper model. No glass doors, no stainless steel. You don't need these features.