07/30/2026
Sometimes the problem isn't where you can see it... it's where you can't.
A customer called because they were having to empty their emergency drain pan several times a day just to keep the A/C running.
At first glance, nothing obvious stood out. Since most of the evaporator drain pan couldn't be visually inspected, I added food coloring to the condensate water. The red dye you see in the picture revealed exactly what I suspected—a cracked primary drain pan that was allowing water to leak into the emergency drain pan.
This is a great example of why proper diagnostics matter. Clearing a drain line or replacing a float switch may have temporarily addressed the symptom, but it wouldn't have fixed the actual problem.
If your A/C is shutting off because of a float switch, your emergency drain pan is filling with water, or you've noticed water around your indoor unit, don't ignore it. Finding the root cause early can prevent water damage, reduce repair costs, and get your system back to operating the way it should.
Avalanche Heating & Air Conditioning, LLC is proud to serve Statesville, Troutman, Mooresville, Harmony, and the surrounding communities with honest diagnostics and quality HVAC service. We don't believe in guesswork—we believe in finding the real problem and fixing it right the first time.