Help, Kenmore HE 3 Washing machine, drum is off ballance, wobbles when turned. Can anyone suggest a solution or suggestions on what I should be looking for to fix myself before calling a repairman.

We inherited an old Maytag fridge when we bought our house. I suspect it is as old as the house which is about 22/23 years old. Freezer part seems to work fine. Right now set to mid. Fridge part is set as cold as it can and only gets to 40 degrees lowest and sometime runs mid 40's. I pulled the fridge out and did a thorough cleaning of the bottom where the compressor is and it appeared to help initially but within a few days was back to warm temps. Does this sound like a compressor problem? If so, how much is it going to cost to fix and is it even worth sinking those $$$ into a 22 year old fridge? We are inclined to buy a new one and just stick this one in the garage as a beer/soda cooler and for overflow for parties. Also, would moving the setting for the freezer to colder help the fridge section run a little cooler? This is a side by side. Model# MSB2354ARA. PS I did search some other posts here before creating a new thread. Still wanted to post though in case there is a known issue with this model of Maytag. Some of the other posts mentioned clogs causing warming issues. Thanks for your replies!