J. B., it now sounds like my bet would be on the A/C system not cooling enough.

If I use the 'd' in my SDL it will fog up. After I select the 'b' setting I can see the fog evaporating before my eyes.

As Peter said, no cooling, no de-humidifying, and sounds like you're doing everything else correctly and there does not seem to be any other defect.

Good luck, and please let us know what you find.

Jim