I have a Frigidaire side-by-side that I purchased about a year old and has worked fine for the past 7-8 years. Anyway recently it started not cooling with a buzzing sound coming from the compressor area for about 10 seconds every 5 minutes or so. So I figured it was the starter or capacitor and replaced them both but apparently that didn't fix the problem.

The fridge will work fine for a week or so and then quit. Eventually the compressor will start again and the fridge will run fine for another week or so and then just stop again. Over and over. So is there anything else to try or can I safely assume the compressor is on it's last legs and buy a new fridge? Thanks for the help.