Get Your Frozen Air Conditioner Working Again with These 3 Fast Tips

Does the air coming from your supply registers abruptly feel not cold enough? Look at the indoor part of your air conditioner. This piece is located inside your furnace or air handler, if you rely on a heat pump. If there’s water seeping onto the floor, there might be ice on the evaporator coil. The AC coil within the equipment may have frozen over. You’ll need to thaw it before it can cool your house again.

Here’s what to do. If you can’t get the coil back to normal, Service Experts Heating & Air Conditioning is here to help with air conditioning repair in Houston that includes a a 100% satisfaction guarantee.*

Step 1: Set the Air Conditioning to Off and the Blower On

To get started—move the thermostat from “cool” to “off.” This prevents chilled refrigerant from going to the outdoor compressor, which could hurt it and result in a costly repair.

After that, move the fan from “auto” to “on.” This produces warm airflow over the crystallized coils to make them melt faster. Make sure to set the cooling mode to “off” so the air conditioner doesn’t trigger a cooling cycle.

It might take under an hour or most of the day for the ice to thaw, depending on the level of the ice. While you’re waiting, watch the condensate pan underneath the AC unit. If the drain line is blocked, it may create a mess as the ice melts, possibly causing water damage.

Step 2: Troubleshoot the Issue

Low airflow is a prime reason for an AC to freeze up. Here’s how to figure out the situation:

  • Check the filter. Low airflow through a clogged filter could be the issue. Check and replace the filter once a month or once you notice a layer of dust.
  • Open any sealed supply vents. Your house’s supply registers should remain open all the time. Sealing vents limits airflow over the evaporator coil, which might result in it freezing.
  • Check for obstructed return vents. These typically don’t use shiftable louvers, but furniture, rugs or curtains can still block them.
  • Low refrigerant: While airflow restrictions are the most typical cause, your air conditioner may also not have enough refrigerant. Depending on its age, it may have Freon®. Low refrigerant requires pro support from a certified HVAC specialist. H2: Step 3: Get in Touch with an HVAC Pro at Service Experts Heating & Air Conditioning

If low airflow doesn’t appear to be the issue, then another issue is causing your AC frost over. If this is what’s occurring, simply letting it melt won’t fix the problem. The evaporator coil is likely to continually freeze unless you fix the main problem. Call an HVAC professional to check for issues with your air conditioner, which can include:

  • Refrigerant leak: AC units keep using refrigerant, so it shouldn’t run low. Low refrigerant indicates a leak somewhere. Only a technician can locate the leak, repair it, and recharge the air conditioner to the appropriate amount.
  • Grimy evaporator coil: If grime builds up on the coil, air can’t get to it, and it’s liable to freeze.
  • Nonfunctional blower: A broken motor or unbalanced fan could prevent airflow over the evaporator coil.

When your AC freezes up, get in touch with the ACE-certified techs at Service Experts Heating & Air Conditioning to fix the problem. We have years of experience helping homeowners check their air conditioners, and we’re sure we can get things operating again fast. Contact us at (713) 352-7887 to book air conditioning repair in Houston with us today.


*Not applicable to the Advantage Program. See your signed Advantage Program agreement for full details and exclusions. 100% Satisfaction Guarantee is subject to certain restrictions and limitations as set forth in the applicable Terms and Conditions.