Re: Old school hacking ...
You must have the newer model of wife. I've got an older model and she keeps turning the thermostat down.
I think there's a common fault in the temperature sensors and after running for a few decades the sensors start reporting the external temperature to be several degrees hotter at random times. I'm told this will pass after a certain time but there's no way to know the duration.
The temperature sensors aren't a user-replaceable part. The only options are to live with the problem or replace the whole unit, but replacing the whole unit can be very expensive.