A:AnswerIf it fits that's fine with 1" in back but the heat removed from the fridge must go somewhere. That cabinet needs to be ventilated on the back wall and toward the top since the warm air will rise from the coils. Should have some space on bottom to draw in cool air. If not you will make it work harder (be less efficient) and make the condenser pump fail sooner.
A:AnswerYou might be able to find the manual online or in the manufacturer’s website.
The fridge cools because of the gas in the compressor hence if the compressor is damaged or lost the gas it will run but not cool. If that’s the case you will be better off buying a new one as it’s not a DIY.
A:AnswerNo real assembly required. Mostly you need to remove tape that holds the shelving and plastic cubby dividers in place. One important piece of advice is that if you place it on a carpeted floor you should elevate it slightly by placing a board or mat under it. This is so the door does not drag along the carpet.