I bought a Haier wine cellar for $5 that no longer cools below 81 degrees, what would cause that?
I know it's a thermoelectric cooler. When I got it home the inside temp read 101. I left it on for several hours and it went down to 81. But it's set to go down to 46 (there is no lower setting than that) but it won't get cooler than 81 degrees (not even after being on for days). When I removed the back, it looks pretty simple, there is a large fan on top of a large heat sink on the back. From the inside, there is a second large fan that blows into the cooling compartment. I'm trying to figure out how it works so I can either fix it or turn it into something else.