I am the sole owner of this vehicle. In the past month, I noticed I occasionally have a damp front passenger floor. It does not leak when it rains. It does not leak all the time. I have cleaned out the condensation tube. It seems when I run the air conditioner it is not a problem. Yesterday, I ran just the blower for most of a trip and I noticed the floor was damp. I have rubber floor mats. Any suggestions on the cause of this condensation issue and how to fix it would be appreciated.