What to Do When Your AC Unit Freezes Up Inside

Sub Zero Temp Control - What to Do When Your AC Unit Freezes Up Inside

When the summer heat hits Vancouver, WA, the last thing you want is a frozen air conditioner. At Sub Zero Temp Control, we often get calls from homeowners asking exactly what to do when your ac unit freezes up inside. If this happens to you, don’t panic. There are a few simple steps you can take before calling in the pros.

Common Reasons Your AC Unit Freezes Up Inside

Before we jump into what to do when your ac unit freezes up inside, it’s good to understand why it happens. Typically, it boils down to a few key issues:

  • Dirty air filters restricting airflow

  • Low refrigerant levels

  • Blocked or closed vents

  • Malfunctioning blower fans

Each of these problems can cause the evaporator coil to get too cold and freeze up.

What to Do When Your AC Unit Freezes Up Inside: First Steps

If you notice ice buildup, here’s what to do when your ac unit freezes up inside right away:

  • Turn off your system. This stops more ice from forming.

  • Switch your fan to “On.” This helps melt the ice faster.

  • Check your air filters. A clogged filter could be the main issue.

  • Inspect your vents. Make sure they aren’t blocked by furniture or curtains.

Sometimes, these easy steps can fix the issue before it gets worse.

How Long to Wait Before Restarting Your AC

After you follow the steps for what to do when your ac unit freezes up inside, patience is key. It can take several hours for all the ice to melt. Resist the urge to restart the system too soon, or you could cause more damage.

Pro Tip: What to Do When Your AC Unit Freezes Up Inside

If you’re unsure whether the ice is fully melted, just give us a call at Sub Zero Temp Control. We’re happy to give advice over the phone!

When to Call Sub Zero Temp Control for Help

Sometimes, knowing what to do when your air conditioning unit freezes up inside isn’t enough to fix the deeper issue. Here’s when it’s time to call in our team in Vancouver:

  • The ice keeps coming back after you restart the AC

  • You notice strange sounds or smells

  • Your home isn’t cooling properly, even after troubleshooting

We service homes across Vancouver and nearby areas like Salmon Creek and Orchards. Our technicians can diagnose refrigerant leaks, blower issues, or bigger airflow problems.

Preventing Your AC from Freezing Again

After you’ve tackled what to do when your ac unit freezes up inside, it’s important to prevent it from happening again. Regular maintenance is the key. At Sub Zero Temp Control, we recommend:

  • Changing your air filters every 1-3 months

  • Scheduling yearly AC tune-ups

  • Keeping vents and registers open and clear

Small habits like these make a huge difference when it comes to system health.

Need Fast Help? Contact Sub Zero Temp Control Today

If you’re still unsure what to do when your air conditioning unit freezes up inside, don’t stress. At Sub Zero Temp Control, we’re here to help families all over Vancouver, WA stay comfortable. Whether you live near Downtown Vancouver or closer to Felida, our expert team is just a call away.

Contact us today and let us get your AC back to normal — fast!

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