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Hi, I'm Robert. Welcome to JustAnswer. I'm reviewing your question now and will post back with your reply momentarily.
You should have a main fuse panel inside, normally it is next to the breakers, check each fuse inside that breaker panel for a blown fuse. I might also get a 12 volt test light and probe each fuse for power, doing this will tell you if there is a loose connection on the back of the fuse where the wires are coming in. Pulling the fuses is also good and checking them but if you had a loose connection at the panel you would never know.
Also look near the battery for a short-stop style breaker, below is a picture. IF you had any as a general rule they would be 18" from the battery and can be on the frame, if you see any at all each post should have voltage to chassis ground, sometimes the fridge will be wire directly to the battery and they will use one. Most have a tiny tab on them that will pop out when they trip... Hope this helps, please feel free to follow up if needed....
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