AC Freezing Up in Houston?
It might seem ironic that your AC can freeze in Houston's heat, but it's actually one of the most common AC problems we see. When ice forms on the evaporator coil or refrigerant lines, your system los...
Call (800) 555-1234Understanding the Problem
It might seem ironic that your AC can freeze in Houston's heat, but it's actually one of the most common AC problems we see. When ice forms on the evaporator coil or refrigerant lines, your system loses cooling capacity and can suffer serious damage if left running.
Common Causes
Low Refrigerant
When refrigerant is low, the remaining refrigerant drops to extremely low temperatures, causing moisture on the coil to freeze solid.
Poor Airflow
A dirty filter, blocked vents, or a failing blower motor reduces airflow over the evaporator coil, allowing it to drop below freezing.
Dirty Evaporator Coil
Dust and grime insulate the coil, preventing proper heat absorption and causing ice buildup.
Stuck Contactor or Relay
If the system runs continuously without cycling, the coil temperature drops too low and ice forms.
Outdoor Temperature Drop
Running your AC when outdoor temps drop below 60°F can cause the system to freeze up. This is less common in Houston but can happen on cool nights.
When to Call a Pro
Turn off your AC immediately and switch the fan to 'on' to help thaw the ice. Do not try to chip ice off the coil. Once thawed, if the system freezes again, call Big League Air — you likely have a refrigerant leak or mechanical issue.
Our Solution
We locate and repair the underlying cause — whether it's a refrigerant leak, airflow restriction, or component failure. Then we verify proper superheat and subcooling to ensure your system operates safely.
AC Freezing Up in Houston? — FAQ
Why is there ice on my AC unit?+
Should I turn off my AC if it's frozen?+
How long does it take for a frozen AC to thaw?+
Need Help Now?
Big League Air — fast, professional HVAC repair across Houston. Call now.
(800) 555-1234