Why Is My Furnace Leaking Water in the Summer in Royal Palm Beach?
South Florida residents know the drill: hot, sticky summer days that send your air conditioning into overdrive. But what happens when you notice water pooling around your furnace, even though it hasn't run in months?
If you’re seeing signs of a leak, don’t panic. At Pro-Tech Air, your trusted local HVAC experts serving Royal Palm Beach, Wellington, West Palm Beach, Palm Beach Gardens, and nearby communities, we’ve helped many homeowners solve this exact issue.
Let’s walk through what’s happening — and why your furnace isn’t really the culprit.
It’s Not the Furnace — It’s a Condensation Leak
In most Florida homes, especially in Palm Springs, Loxahatchee, and Boca Raton, your air conditioning and furnace share a single indoor unit. That unit often lives in a garage, closet, attic, or utility room. So when you see water leaking from the “furnace” in summer, it’s typically due to condensation from your cooling system, not a heating issue.
Here’s how it works: when your AC cools the air, it also removes humidity (a lot of it!). That moisture collects on your evaporator coil and drips into a drain pan, then flows out through a PVC drain line. But when something goes wrong in that drainage process — and it often does in Florida’s climate — water backs up and leaks.
So if you’ve been asking, “Why is my furnace leaking water in the summer?” — here are the most common reasons.
4 Common Reasons for HVAC Leaks in Royal Palm Beach & Surrounding Areas
1. Clogged AC Drain Line
This is the #1 cause we see at Pro-Tech Air. In our warm, humid climate, algae and mold grow quickly inside the drain line. When that line clogs with buildup or debris, water backs up into the unit — and onto your floor.
2. Cracked Condensate Pan
The condensate pan is where all that moisture first collects. Over time, especially in coastal areas like Juno Beach and Lake Worth, the salty air can rust or crack the pan. A broken pan means leaks before water ever reaches the drain line.
3. Loose or Improperly Installed Drain Lines
In many homes around Westlake, we find that vibrations or poor installation can cause the drain line to shift. If the line disconnects or doesn’t slope correctly, water collects and spills around your unit.
4. High Humidity Overload
Even with a clean system, the Florida humidity can overwhelm older or poorly sized AC systems. When moisture builds faster than the system can remove it, water pools — and leaks follow.
Other Causes Worth Checking
While less common, these issues are worth keeping an eye on:
Mold, dirt, or pet hair clogging the drain line
Frozen evaporator coils causing blockages or ice melt
Poor insulation around ductwork leading to extra condensation
Don’t Let a Small Leak Become a Big Problem
Homeowners in Royal Palm Beach and nearby towns care deeply about comfort, health, and home value. A small water leak can damage floors, drywall, and insulation — or even lead to mold.
That’s why regular HVAC maintenance is key. At Pro-Tech Air, we recommend having your drain line flushed twice a year to keep things flowing and avoid mid-summer surprises.
Call Pro-Tech Air for Trusted Local AC Repair
We know the Florida heat. We live here too. That’s why families across Palm Beach County count on Ed and the Pro-Tech Air team for honest advice, reliable service, and high-quality workmanship.
If you’re seeing water around your AC or furnace, give us a call. We’ll inspect the system, explain what’s going on in plain English, and help you get back to a dry, cool, and healthy home — without the pressure or confusion.
