Why Is My AC Freezing Up? A Northern Virginia Guide
Learn why your air conditioner is freezing and what steps you should take to prevent damage to your system.
The Main Causes of Frozen Coils
Ice forms when your evaporator coils get too cold. A dirty air filter is the most common cause. Low refrigerant levels also trigger this problem. Restricted airflow prevents the unit from pulling in enough heat.
What to Do Right Now
Turn your thermostat to the off position immediately. Switch your fan setting to on instead of auto. This helps melt the ice without running the compressor. Do not attempt to scrape the ice off the coils yourself.
When to Call a Professional
Check your air filter first. If the filter is clean and the unit still freezes, you likely have a refrigerant leak. A technician must fix leaks or electrical issues. We serve Loudoun and Fairfax County to help with these repairs.
Common questions
Can I just defrost it with hot water?
No. Using hot water can damage your equipment. Let the system thaw naturally with the fan running.
Why does it happen more in the summer?
High humidity in Northern Virginia makes your system work harder. This extra moisture can lead to rapid ice buildup if airflow is poor.
Have a question about your system? Just call.
Call for same-day service or send a request for an honest, no-pressure quote.