AC Water Leak

high priority

Water pooling around indoor AC unit or furnace

Request Help

Understanding This Problem

Water leaking from your AC can cause water damage and indicates a drainage problem. Most AC leaks are preventable with proper maintenance.

Quick Answer

AC Water Leak usually points to clogged condensate drain line, cracked or overflowing drain pan, frozen evaporator coil melting. Start with the safe checks listed below, document what changed, and stop running the equipment if the symptom involves burning smells, gas odor, repeated breaker trips, ice, water damage, or unsafe operation.

Common Causes

Clogged condensate drain line
Cracked or overflowing drain pan
Frozen evaporator coil melting
Improper installation
Disconnected drain line
Dirty air filter

What You Can Do

Turn off system to prevent damage
Clear standing water
Flush condensate drain line
Inspect drain pan condition
Check for ice on coil

What to Document Before Scheduling

When ac water leak started and whether it happens during heating, cooling, startup, shutdown, or long cycles.
Thermostat setting, actual room temperature, filter condition, breaker status, and any error codes.
Photos or short videos of the thermostat, indoor unit, outdoor unit, vents, leaks, ice, or unusual sounds.
System age, brand, model number, recent maintenance, and any previous repair recommendations.

Prevention Tips

  • Flush drain line annually
  • Install safety float switch
  • Keep drain line accessible for maintenance

Questions Before Approving Repair

Which finding best explains ac water leak, and what reading or observation supports it?
Can any safe homeowner step be tried first, or should the equipment stay off until inspection?
What is the difference between the immediate repair, follow-up maintenance, and replacement planning?
What parts, labor, exclusions, warranty assumptions, and safety risks should be written into the scope?
High Priority

This issue should be addressed promptly to avoid damage or discomfort.

Schedule ServiceContact Us

24/7 Emergency Service Available

Services That Can Help

AC Repair

Fast, reliable air conditioning repairs.

Learn More

AC Tune-Up

Annual AC maintenance for peak performance.

Learn More

Duct Repair

Ductwork sealing, repair, and replacement.

Learn More

Related Cooling Issues

AC Not Cooling

medium

Air conditioner runs but doesn't cool the house

AC Blowing Warm Air

high

Air conditioner blows room temperature or warm air

AC Short Cycling

medium

AC turns on and off frequently without completing cooling cycle

View All HVAC Problems

Get Help in Your Area

We serve homeowners throughout the Bay Area experiencing this issue:

Menlo ParkPalo AltoAthertonRedwood CitySan CarlosBelmontSan MateoFoster CityBurlingameHillsboroughWoodsidePortola Valley
View All Service Areas

More Helpful Resources

FAQs

Common HVAC questions answered

HVAC Blog

Tips, guides, and maintenance advice

Maintenance Plans

Prevent problems before they start

Need Help With This Problem?

Get a free estimate for your HVAC project. Same-day service available.

Get Free Estimate

24/7 Emergency Service Available • Verify licensing, insurance, scope, and pricing before authorizing paid work.