Your air conditioner works hard to keep you cool during the long San Joaquin Valley cooling season, and keeping your system operating problem-free all summer long can be a challenge. Clogged condensate drains are one of the most common air conditioning problems, causing your condensate pan to overflow, and eventually shutting down your system. Your annual preventive maintenance call should include flushing the condensate drain to prevent this problem, but knowing how clogs occur and what you can do to remove them is a simple but valuable skill that can save you money on a service visit down the road.