I have a brand new refrigerator (bought today) by LG. We noticed there was a metallic sound when the door was opened abruptly or when the fridge was pushed forward and backward. Looking and listening in the back it is something within the compressor that is loose enough that is banging in the inside. The compressor is securely mounted.
The store is sending someone tomorrow to look at it, but I want to be ready if they tell me that “it’s fine”. The fridge is cold and appears to be functioning okay. My concern that this is a fundamental problem that will get worst. I’ve read that there are springs within the compressor casing that could be loose or broken. I’ve also read it could be a bad seal that will corrode overtime and destroy the entire refrigeration system.







Compressors do that . Not to worry .It is the piston banging on the side of the cylinders. If it cools no worry .I don’t recommend moving Refrigerators,air conditioners, or freezers unless you have too .If you lay it on its back for transportation , let it stand for one hour before use to let all the oil drain down .