In our GD379FL I found that with the way GD places the front AIR Sensor it can get a false reading, by way of heat transfer, when the SUN is heating up the outside of the rig, The sensor can read 85' but the real room temp is @ 70' so to fix this this is what I did ( Oh I am in the HVAC trade )
I still need to pick up longer screws. I had some form laying around, I cut it to the size then punched a hole in the middle for the sensor, also need to finish the edges , But it gives you the real room temp.....Hope this Helps,,,,,,,,,Click image for larger version. 

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