let me re-explain. The temperature control on the inside was reading 70. I tried to push the button to get it to read lower, it would not go any lower. I pushed the up button and it went to 77 degrees. I can't get it to go any lower.
I had mine act strange when I took the battery cable off one time.
Maybe just for grins take off the + battery cable and wait a few minutes.
Then reconnect. Make sure you have the AC off when you remove the cable.
Maybe it will do some kind of reset or something.
Just a thought.