We have a Freezer in the carport.After replacing the GFCI plug,it still trips ones a week!What should I do?

Assuming the new GFI is also not defective, and assuming this outlet is outdoors, all you can do is have the freezer checked for a ground fault that must be tripping the GFI.

Could be the defrost cycle that operates weekly.

You either have an intermittant ground fault or, carports allow rain to splash in and dew or fog get on the GFCI. This will also cause it to periodically trip.

Thank you!

Thank you!