Started to warm up freezer and fridge, freezer was up to 20F. Cleaned all the dust out, didn't help. Unplugged it not for hours but 30 min. or so,,,didn't help. Had some time so I took a look, took rear covers off. The rear fan had stopped, spun it and it started up again. I was really looking for a recharge hook-up for 134a. But didn't locate anything. I also looked at box on front, has red button/ knob. Turned that around a couple times thinking it may be defrost thermostate, and I could reset it??? Well other than leave the rear covers off, I didn't do much. But now its getting colder, its down to about 6F…So what did I do??? Will it last??? Is there anything else that would help?