Since moving, my freezer trips the new garage's GFCI every night. Should I remove the GFCI or repair freezer? What's most likely component failing?

do a amp check on the compressor and fans.That will tell you exactly what is overloading.

get large grade ext cord, not a cheap one..try plugin into another outlet....watch out that GFI can control other outlets

If the unit was laid down during transit, you may have caused damage to the inner works of the sealed system. Usually not worth it to repair it, sorry.

I’m happy to assist further over the phone at https://www.6ya.com/expert/david_dc2f9e0a44104720

Try it in a normal plug. Freezers and refridgerators just pull too much to be used on a GFCI. The more a GFCI is used the eaiser it trips.

All fridge and freezers should be plugged into an NON-GFCI protected outlet, since the inital start of the compressor can cause the GFCI to detect a millivolt surge, when the compressor starts, causing the GFCI to trip.

If this is in a kitchen, you should change out the outlet to a non-GFCI outlet BUT only to a single outlet that only has the freezer plugged into.

If it's in a basement, garage, or some other place with a GFCI outlet, you can change out that one outlet to a standard single outlet device of which ONLY the freezer will be plugged into and remain code compliant. You will need to make sure that any other outlets served by that current GFCI outlet stay protected, by installing the GFCI you swap out, and put it in place of the NEXT outlet in the circuit.

By doing that, you will have the first outlet that was the GFCI, now a single outlet NON-GFCI serving the freezer, but the next outlet in the branch circuit gets a GFCI outlet, thus protecting the rest of the circuit, in compliance with the NEC (National Electric Code)

If you need further help with this, please comment back and I'll check back later and provide you more detailed info. Of course, be sure to turn off the breaker to this circuit before making any changes to the outlets, etc.

Hope you find this Very Helpful and best regards!

Your compressor start relay contacts may be getting loose or worn, resulting in a delayed start on the compressor.
If the start device includes a capacitor, it could be getting weak.
GFCI are not good receptacles for devices with high starting torque.

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.

This is self explanitory. If the outlet is getting wet, it either needs to trip or go up in smoke. Not very surprizing because most restaurant personel only know that the unit has failed. Don 't care why either. Just fix it. Can't sight chapter and verse but I do know that if the outlet is located within a certain number of feet of a water source, code calls for the GFI. All new homes built in the last 8 to 10 years must have a GFI in the bathrooms and kitchen areas. You may want to point that out.

actionsnax please remove the freezer from the GFCI. What is happening on this old unit is that if the compressor shuts off then tries to come back on before the pressure in the system equalizes, the compressor can pull 12 amps. This is normally higher than the trip point of the GFCI. I had this happen years ago with a brand new Amana SXS refrig, in that case no one knew the unit was on a GFCI. The manufactures require that this units not be on a GFCI.
Hope this helps

check the plug itself may be melted. next check the cord itself at terminations inside the freezer compressor section. if it's plugged into a gfci try resetting the gfci receptacle. check breaker, may have tripped off.