HF, you should have an owners manual on the frig and it should have a basic check list for trouble shooting. Beyond the basic, you will need to get it to a service center.
Are you trying to cool on gas or electric? Do you have a volt-ohmmeter?
Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Travel with one Standard Schnauzer and one small Timneh African Gray Parrot