Family First Comfort logoFamily First ComfortYour Comfort, Our Promise.
Air Conditioning · Lewisville, TX

Why Your AC's Evaporator Coil Freezes Up (and What to Do About It): A LewisvilleHomeowner's Guide

Homeowners near Lake Lewisville and elsewhere in Lewisville bring this up more than you'd think. This page covers the local specifics before you dig into the full guide.

For Lewisville Homeowners

Lewisville homeowners in Denton County deal with the same North Texas climate swings as anywhere else in our service area, and this topic tends to surface on the same seasonal schedule here as it does everywhere we work.

Lewisville, home to its own Lewisville ISD, is a large, well-established city along Lake Lewisville with a wide mix of home ages, from older homes closer to Old Town Lewisville to newer construction on the city's edges. That range means we regularly work on everything from decades-old systems to newer high-efficiency installs, often within the same neighborhood.

Lake LewisvilleOld Town Lewisville
750577506775077

What the Full Guide Covers

  • Restricted airflow is the most common cause
  • Low refrigerant from a leak
  • Running the AC in cooler temperatures than it's suited for
  • A dirty coil itself
  • What to do if you notice ice on your system
Read the Full Guide: Why Your AC's Evaporator Coil Freezes Up (and What to Do About It)

Need help with this in Lewisville?

Call (817) 935-8540

Lewisville FAQ

How long does it take for a frozen coil to thaw?+

It varies by how much ice has built up, but running the fan-only setting (not cooling mode) typically thaws a coil within a few hours. Turning the whole system off overnight is also a reasonable, safe approach if you're not in immediate need of cooling.

Will the coil just freeze again after it thaws?+

If the underlying cause, a dirty filter, low refrigerant, or restricted airflow, isn't addressed, yes, it's very likely to freeze again. Thawing it is a temporary fix, not a solution, which is why the actual cause needs to be diagnosed rather than just repeating the thaw cycle.

Is this guide relevant for Lewisville homes in Denton County?+

Yes, this applies to homes throughout Denton County, including Lewisville. If you'd like this looked at for your specific address, call (817) 935-8540 and mention your ZIP code.

Have a question about your system in Lewisville?

Call now or request an estimate, and we'll follow up with clear, honest next steps.

Call (817) 935-8540

Appointment windows reflect our best estimate and are not a guaranteed arrival time.