Simple Steps to Repair a Frozen Air Conditioner

Does the air emitting from your supply registers suddenly seem hot? Check the indoor component of your air conditioner. This piece is situated within your furnace or air handler, if you rely on a heat pump. If there’s water seeping onto the floor, there could be ice on the evaporator coil. The AC coil inside the unit may have frosted over. You’ll need to melt it before it can cool your house again. 

Here’s what to do. If you can’t get the coil back to normal, McKinley Heating Service Experts is here to assist you with air conditioning repair in Edmonton backed by a 100% satisfaction guarantee.* 

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

To get started—set the thermostat from “cool” to “off.” This stops chilled refrigerant from flowing to the outdoor compressor, which could hurt it and cause a costly repair. 

Next, move the fan from “auto” to “on.” This makes warm airflow over the frosty coils to make them thaw faster. Remember to set the cooling mode to “off” so the air conditioner doesn’t start a cooling cycle. 

It can take not more than an hour or the majority of the day for the ice to melt, depending on the level of the accumulation. While you’re waiting, keep an eye on the condensate pan below the AC unit. If the drain line is blocked, it could spill over as the ice melts, potentially causing water damage. 

Step 2: Troubleshoot the Issue 

Not enough airflow is a chief reason for an AC to become frozen. Here’s how to troubleshoot the problem: 

• Look at the filter. Insufficient airflow through a filthy filter could be the culprit. Look at and replace the filter monthly or immediately when you see dust accumulation. 
• Open any closed supply vents. Your residence’s supply registers should be open always. Closing vents decreases airflow over the evaporator coil, which may result in it freezing. 
• Look for covered return vents. These often don’t use shiftable louvers, but furniture, rugs or curtains can still obstruct them. 
• Low refrigerant: While airflow restrictions are the most frequent suspect, your system might also not have enough refrigerant. Depending on how old it is, it may have Freon®. Insufficient refrigerant requires pro attention from a certified HVAC specialist. H2: Step 3: Get in Touch with an HVAC Specialist at McKinley Heating Service Experts 

If poor airflow doesn’t appear to be the issue, then another problem is causing your AC freeze. If this is the case, merely thawing it out won’t take care of the trouble. The evaporator coil is likely to continually freeze unless you repair the root problem. Contact an HVAC professional to check for issues with your air conditioner, which could include: 

• Refrigerant leak: AC units recycle refrigerant, so it shouldn’t run low. Low refrigerant indicates a leak somewhere. Only a pro can pinpoint the leak, mend it, and recharge the air conditioning to the proper level. 
• Filthy evaporator coil: If grime accumulates on the coil, air can’t flow over it, and it’s likely to freeze. 
• Nonfunctional blower: A broken motor or unbalanced fan might stop airflow over the evaporator coil. 

The next time your AC freezes up, call on the certified pros at McKinley Heating Service Experts to fix the problem. We have years of experience helping homeowners diagnose their air conditioners, and we’re certain we can get things operating again quickly. Contact us at 780-800-7092 to book air conditioning repair in Edmonton with us now.