If your air conditioner has been running nearly nonstop the last few days, you’re not imagining it. With today’s heat index sitting at 106°F in Providence Village and Saturday expected to hit 110°F, your AC system is working about as hard as it ever will this year. And a hardworking AC system is exactly when condensation leaks show up.
Here’s the good news: most of these leaks are preventable with a five-minute check you can do today, before the heat peaks again this weekend.
Why extreme heat makes leaks more likely
Your AC doesn’t just cool air, it pulls moisture out of it too. That moisture has to go somewhere, and normally it drips into a condensate pan and drains outside through a small PVC line. When your system runs longer and harder, like it has been all week, it pulls more moisture than usual. That means more water moving through that little drain line, more often.
If there’s even a small clog in that line, whether it’s algae, dust, or a bit of debris, extreme heat is when it finally catches up with you. The pan overflows, and water ends up somewhere it shouldn’t, usually a ceiling, a closet, or right through the drywall near your indoor unit.
The 5-minute check
You don’t need any tools or experience for this. Just a few minutes and a flashlight.
- Find your indoor unit. Usually in a closet, attic, or utility room. Look at the drain pan underneath it. Any standing water? That’s your first sign something’s backing up.
- Check the condensate drain line outside. It’s usually a white PVC pipe near your outdoor unit. It should be dripping steadily when the AC is running. If it’s bone dry while your system is clearly on, that can actually mean the clog is already backing water up somewhere else.
- Look for a wet or musty spot on the ceiling below your attic unit, if that’s where your system sits. A faint water stain today can be a soaked insulation and drywall problem by Saturday if the heat keeps pushing the system this hard.
- Listen for your safety float switch. Many systems have one that shuts the AC off if the pan gets too full. If your air conditioner suddenly stops cooling on a 106°F day, this is one of the first things worth checking before assuming it’s a bigger mechanical issue.
What to do if you find water
If you find standing water in the pan or a wet ceiling spot, don’t just wipe it up and hope it holds through the weekend. Turn the system off if you can do so safely, and get eyes on it, either your own or a professional’s, before running it again under Saturday’s heat.
I’ll be honest with you: a little bit of moisture today can turn into a real water damage and mold prevention issue fast when it’s sitting in an attic at 100-plus degrees. Moisture plus heat plus time is exactly the combination that turns a cheap fix into an expensive one.
You’re not alone in this
This is the kind of thing that’s easy to put off until it’s already a mess, especially when it’s this hot outside and the last thing you want to do is get in the attic. I get it.
If you find water damage from a condensation leak, or you’re just not sure what you’re looking at, I’m happy to come take a look. I’m Josh, I handle every inspection myself, and I’ll tell you honestly whether it’s something you can manage yourself or something that needs drying out properly. You can call or text me directly, whichever is easier for you.
And if nothing’s wrong today but you want to be ready just in case, especially with more heat on the way this weekend, grab our free guide, The First 24 Hours After Water Damage. It walks you through exactly what to do in the first hours of a leak, before we ever get there. Worth having on hand before you need it.
-Ally