water leak

2005 Tahoe auto climate control module gets wet everytime it rains, causing the curcuit board to short out. Keep having to re-buy control modules, 3x so far, please help if anyone knows how water could be getting inside my control module, causing my front blower to stop working. Thanks:whymewhyme:

I have a good amount of water on my garage floor. Appears to be coming from the cylinder behind the glove box. Same area that usually leaks when the A/C is running. Should I be concerned? I used a white paper towel to dap the water, it's clear and odorless, so I'm assuming its water. Help...