Ok, I've got a Danby DWC283BLS-1
and for the last year of so, the temperature is slowly rising. I set the Upper and Lower thermostats to my desired temps, (52 and 46 as an example). The unit will NOT cool things down to those temps. WHen it was new it was spot on, and then after about 10 months it was about 1-2 degrees off (warmer), and it was like that for many months. This took it outside my warranty (how convienient). Then, I was at home when we had a power failure, and immediately unplugged the unit before the power came back on, and let it sit for about an hour, plugged it in and reset the temps. After about a day, then temps were 4-5 degrees warmer than what I set and they would not go any cooler. I was a litle worried, but it stayed that way for several more months. Then once again, another power failure, I unplugged the unit as soon as I could and let it sit for a few hours. WHen I plugged it in, and set the temps, about a day later the temps were 10-12 degrees off (warmer). Well, this is still going on, BUT now the temps will just rise by about 1-2 degress every week on thier own. Right now the thermostat is set to 50 on upper and lower sections, but the read out shows 62 and 66.
I've tried multiple times to unplug and let the compressor cool off, for several hours. - No change in operation.
I've cleaned the underside of the fridge, but have not removed the access panel inside. I'm going to do that this evening.
I know that everytime I plug the cooler in, I hear the compressor kick on, and if I'm near the unit every so often I can hear it kick on or off.
What could be my problem? The thermisters? The control board? The unit will still COOL to about 10 degrees BELOW room temp, and as far as I can tell it's not freezing up on the inside, and I never see any water in the drip tray underneath when I let it cool down.