Water around your HVAC unit in the middle of a Sacramento heatwave? That’s more than a seasonal nuisance; it’s often a warning sign of an underlying problem. It’s a sign that something may be wrong. Local homeowners often see temperatures reach the high 90s, and air conditioners run nearly nonstop. That kind of demand can expose small issues before they turn into major problems.
If your HVAC is leaking water, here’s what you need to know and what to do next.
Is It Normal for an AC Unit to Leak?
It’s not uncommon for condensation to form as your AC cools the air, but excess water building up, puddling, or dripping from your unit is not normal. If your AC is leaking water, it likely signals a problem with one of the system’s components or drainage processes.
In Sacramento’s dry summer climate, excessive humidity isn’t usually to blame. Instead, leaks often stem from internal malfunctions or the buildup of dust in the system.
Clogged Drain Lines
One of the most common reasons for an HVAC system to leak water is a clogged condensate drain line.
Common signs:
- Water pooling near your indoor unit
- The AC unit is shutting off unexpectedly
Dust and debris can collect over time, especially if the line isn’t flushed regularly.
Dirty Air Filters
A clogged or dirty air filter can restrict airflow, which in turn affects how the system regulates temperature and humidity. This often leads to condensation forming where it shouldn’t.
What to watch for:
- Reduced cooling performance
- Unusual moisture near the air handler
- The filter looks dark or dusty
Changing your air filter regularly is one of the simplest ways to prevent AC problems during summer.
Frozen Evaporator Coils
When airflow is restricted or refrigerant is low, the evaporator coil can get too cold and freeze. When it thaws, the melting ice may overwhelm the drain system and cause leaking.
Signs of coil freeze:
- Ice buildup on the indoor unit
- Hissing or bubbling noises
- Water dripping after the unit shuts off
This issue is more common during long summer cooling cycles in the Central Valley.
Low Refrigerant Levels
Low refrigerant not only causes inefficient cooling but also affects internal pressure and condensation. If your unit is leaking refrigerant, it may also start leaking water.
Look for:
- The AC is blowing warm air
- Long cooling cycles
- Puddles forming around the unit
Only a licensed Sacramento HVAC technician should handle refrigerant issues.
Broken Drain Pan
Over time, your AC’s drain pan can crack, rust, or shift out of place. This pan is meant to collect water before it drains away. When it’s damaged, water spills out.
Warning signs include:
- Visible cracks or rust in the pan
- Leaking only during operation
- The unit is over 10 to 15 years old
Many older systems in Sacramento homes experience this as they get near the end of their lifespan.
What to Do Next (and When to Call a Pro)
If your AC is leaking water, follow these steps:
- Turn off the system to prevent electrical damage
- Check and replace the air filter if it’s dirty
- Look for visible ice or pooling around the base
- Clear the drain line if you know how to access it safely
If the leak continues or you’re unsure what’s causing it, it’s best to get a professional opinion. A trained technician can find the root of the problem and prevent bigger issues from developing.
Book Reliable AC Repair in Downtown Sacramento
At Gilmore Air, we understand how important a comfortable home is for your family. For generations, we have been serving Sacramento residents with prompt, professional service, whether you are in Downtown Sacramento or anywhere in the Central Valley.
If you notice your HVAC system leaking water or need help with any cooling issue, our technicians are here to help. You can easily schedule your AC repair in Sacramento using our online booking tool. We also offer financing for unexpected repairs, so you do not have to worry about unplanned expenses.
If you would like to learn more about the services available in your neighborhood, take a look at our full list of Downtown Sacramento HVAC services.
