I noticed the other night that my milk seemed warmer than usual, then I opened my freezer to discover that the ice cream was almost completely melted. I removed the ice cream and most of the other items in my freezer to my deep-freeze. I ended up leaving a container of cool whip in the freezer (it wasn’t frozen anymore either) and them moved my appliance away from the wall. I didn’t know what I was looking for, but I moved it anyway. The following morning I checked the fridge and it was back to a normal temperature, so I checked the freezer and the cool whip was frozen again. I then moved my refrigerator back against the wall. Tonight it was getting warmer again so I moved it away from the wall again, and now it seems like it’s cooling down again. Any suggestions as to what’s going on?
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Was the compressor running when it stopped cooling?
Usually you can hear it, also you should be able to feel it vibrating and it should be warm.
Was the condenser/compressor fan running?
Are the condenser coils clean?
Are the front and rear vents clean?
If the compressor was off it could be a thermostat problem.
Thermostats can stick open and when you moved the unit it may have jarred it enough to un-stick it. When it happens again just move the thermostat back and forth (not to off). If the compressor fires up I would replace the thermostat.
Since you are new to fridge repair here is a good site with basic repair info.
http://www.applianceaid.com/frig.html