Originally Posted by Donna
Shades are closed so no sun or outside air hits it.
We can do that too, of course, but the location of our Marine Air control panel, with integral temp sensor, is on an outside bulkhead... and sunlight on our starboard side can heat up all the airspace in between the hull and the interior bulkhead... so the sensor can be fooled a bit.
Our control panel (Passport II) has a calibration feature (U5) to compensate for that if necessary -- at least to a certain extent.
A total reset might fix it, or a total reset might have caused it... and in that case, maybe a reset with some additional calibration might fix it...