The freezer works fine, but if you unplug it, it won't start back up, you have to let it sit unpluged for about 30 minutes to an hour before it will come back on. Its like it needs to cool off, it does get pretty hot.

leave it for a few hours, then try switching on again. You have overheated the compressor, possibly siezed it. In future, if you unplug a fridge or freezer, allow at least 30 mins before plugging back in.

what is your model number is then we can get started then

besides hitting the compressor with a hammer. unplug and lay on its side for 2 hours then upright for 24 hours plug back in. Never ever unplug a freezer

I’m happy to assist further over the phone at https://www.6ya.com/expert/james_1cb31da1bc8c6102

Sounds like a restriction to me.
Recover the charge.
Pressurize the system with 350 pounds of nitrogen pressure through the high side.
Leave it pressurized for 15 minutes.
Release the pressure through the low side.
Replace the filter drier again.
Pull a 2 hour vacuum on high and low side.
Recharge liquid refrigerant on the high side.
Let the system sit idle for 30 minutes before starting.
Check the evaporator fan motor as well as the coils. Use a good coil cleaner on the e-coil.

putting unfrozen food in a freezer can raise the temp to cause it to go off allow 24 hours for it to stop if it dont replace the buzzer

That is the overload protector on the compressor. Keep the door closed to preserve the cooling you have from the frozen food. Leave it unplugged for about an hour. Bang on the compressor with a rubber or wooden hammer then plug it back in. If it does not start you either need a new start relay or a compressor.

Whenever you get a frig or freezer delivered it is best to wait at least 24hrs (some say 8 hrs) before you plug in. It maybe unknown to you if this was shipped to you in the laying down postion. If it was and you plugged in it will not work because laying down the oil migrated away from the compressor.

Other than that the freezer could have (possible chance but still possible) problems that are out of your control. If you brought it at a retail store you have at least 2 weeks to exchange. Do that a.s.a.p.
Dont bother trying to figure out just exchange!!!

hope this was helpful

Try thawing out the freezer....Put all your food in a cooler, unplug the freezer and leave the door open, let the freezer sit for a few hours then plug it back in, if this doesnt help you may need to recharge your refrigerant....If you have a model you can refill hope this helps

The defrost timer is faulty or you have a defrost circuit short, unplug remove back panel inside the freezer and check for a short in the heater and defrost thermostat.

try a new start relay and overload kit specifically for the make and model freezer you are working on. if compressor can be seen ,the numbers on it can be used to get correct oem start cap, relay ,and overload. if your unit is having starting problems that will usually fix it. if however, the stat is failing to bring it on a new stat is called for. but it sounds like it is having starting problems since you said it was off a long while then still struggled on the overload to start then finally did. if the new start components don't work then new freezer time. compressor replacement is to expensive anymore. good luck