Backstory: Kenmore model 253.21721103 upright freezer, manufacture date of 12/02, bought new. Worked find for years.
This freezer is kept on a stair landing that is protected from elements, but not temps and humidity. Worked fine for years.
This past winter, we started smelling burned rubber in the vicinity of the freezer, and we could not find a source for it. I figured it was a belt in the freezer that no longer had tension or something.
When things started warming up, we moved contents to fridge freezers, but didn't get around to investigating until now.
It runs, but it won't cool. Everything underneath (plumbing, etc) are clean. Condenser and fan on inside of freezer under panel are clean also. Fan runs. Will turn on/off with temp control switch. Everything seems normal. I'm starting to suspect it may have lost the R134 from a leak somewhere, although I have no proof of that.
Any ideas of what to check? I am a fairly handy person, and have used this website in the past to fix other appliances.
Otherwise, I'll have to call a repairman. I haven't ever done that for an appliance before.