Turn cooling off
Switch the thermostat from cool to off. If you see ice, running the fan alone can help it thaw.
Indoor AC coil iced over, leaking or not cooling?
The evaporator coil inside the air handler or furnace is where air gets cooled. Ice, leaks or dirt on the coil stop cooling and can overflow water. Turn the AC off if there is ice, then call 833-877-1717. RepairNowUSA connects the request. An independent HVAC technician does the repair.
Am I in the right place?Yes for ice on the indoor coil or lines, poor cooling, water around the indoor unit, or a refrigerant leak found at the coil.
Is this urgent?More urgent in hot weather or when water is spreading.
What do I do next?Turn the AC off to thaw any ice, catch the water, and call 833-877-1717.
Ice everywhere: frozen AC unit. Leak confirmed: refrigerant leak.
RepairNowUSA editorial review · Last substantively reviewed October 14, 2026 · Review standards
What to do
Watch for water
Melting ice can overflow the drain pan. Put towels around the indoor unit and check the drain line.
Check the filter
A clogged filter starves the coil of air and is a common cause of icing. Replace it if dirty.
Do not chip ice
Chipping or scraping ice can puncture the coil. Do not open the outdoor unit, touch the capacitor or wiring, or handle refrigerant. Capacitors hold a dangerous charge even with power off, and refrigerant work requires EPA certification.
Coil problems
Frozen coil
Low airflow from dirty filters or a failing blower, or low refrigerant, can make the coil ice over.
Refrigerant leak
Coils can develop small leaks over time. The system cools less and may freeze. Only certified technicians can handle refrigerant.
Dirty coil
Dust and debris on the coil reduce cooling and efficiency.
Overflowing drain pan
A clogged condensate drain or cracked pan leaks water near the indoor unit. See AC drain line repair.
What to have ready when you call
- Property ZIP code and whether it is a home, rental or business
- Whether you see ice or water at the indoor unit
- When you last changed the filter
- Whether the system is cooling at all
- System age and brand, if known
How evaporator coil repair usually works
- Thaw and inspect. The coil is thawed and checked for dirt, damage and leaks.
- Check airflow. The filter, blower and ducts are checked for restrictions.
- Leak search. If refrigerant is low, the technician looks for the leak before recharging.
- Repair or replace. Small leaks may be repaired. Leaking coils are often replaced, which may need matching to the outdoor unit.
Refrigerant work requires EPA Section 608 certification. Adding refrigerant without fixing a leak only delays the next failure.
What happens when you call RepairNowUSA
- Describe what is happening in plain words and give the property ZIP code. You do not need to know which trade to ask for.
- RepairNowUSA checks for a participating independent provider who handles evaporator coil repair in that area.
- If one is available, you are connected. The provider confirms timing, access, scope and price with you before any work.
- The provider, not RepairNowUSA, diagnoses and performs the repair.
RepairNowUSA is a referral and connection service. Provider availability and response times vary by location, time and demand, and are not guaranteed. Before you approve work, ask what was found, the price, the timing and what is not included.
Call 833-877-1717Evaporator coil questions
Why does my indoor AC coil freeze?
Low airflow from a dirty filter or blower problem, or low refrigerant from a leak, are the usual causes.
Can a leaking coil be repaired?
Sometimes. Small accessible leaks can be repaired, but many leaking coils are replaced.
Should I chip ice off the coil?
No. Chipping can puncture the coil. Turn off cooling and let it thaw.
How long does it take a frozen coil to thaw?
Often a few hours with the fan running. Heavy ice can take longer.
Can I call at night?
Yes. You can call 833-877-1717 at any time, including nights, weekends and holidays. Whether an independent provider can come out right away depends on your ZIP code, the time and provider capacity, so availability is not guaranteed.
Authoritative references
These public sources give general safety context. They do not replace an on-site evaluation, and RepairNowUSA does not perform the work.