what is the mechanism that tells the little button to cycle the compressor off and on. Mines doens't do it anymore, I have to push it quite a bit back into the blue-toward-off position to get it to cycle. Temeperatures have been in the 70's so I'd expect it to cycle off even more being that it doesn't need to work so hard to cool off the temp. Blows cold. Thanks.
-Hector