4 Ways To Prevent Ice Buildup On Your Air Conditioner

28 July 2017
 Categories: , Blog


The sight of your air conditioner literally being on ice is always a strange one, but it's not uncommon. Unfortunately, ice buildup can prevent your air conditioner from working properly, robbing your home of its cooling comfort. Prevention is always the best policy, so here are a few tips you can use to prevent ice buildup on your air conditioner and undergo hvac repair.

Change Your Air Filter

Believe it or not, a dirty air filter is one of the most common causes of ice buildup on air conditioners. It all comes down to a clogged-up air filter preventing sufficient amounts of air from reaching the evaporator coil. When this happens, temperatures at the coil can drop below freezing and cause ice buildup.

Changing your air filter on a regular basis not only prevents this from happening, but it also keeps the rest of your air conditioning system in good health. Regular air filter changes can also improve your home's indoor air quality over time.

Keep the Evaporator Coil Clean

It's not just a dirty air filter that can cause problems. If the evaporator coil itself is caked with dirt and debris, then that also makes it difficult for air to pass through the coil, preventing the heat transfer process from taking place. This also causes temperatures at the coil to drop below freezing, resulting in ice buildup.

It's possible to clean the evaporator coil using a soft bristle brush, some warm water and mild detergent. You'll want to be careful to avoid using excess pressure while scrubbing, as it could result in the relatively fragile coil fins being bent. If you're not comfortable with cleaning the coil yourself or if there's heavy grime buildup present, you can always have your HVAC technician take care of it.

Give Your Air Conditioner a Break at Night

Running your air conditioner at night may be a great way to reduce nighttime humidity, but it can also put it in greater danger of freezing over. To keep this from happening, you may want to look into other alternatives for staying cool and comfortable at night.  

Watch for Other Airflow Obstructions

You'll also want to watch out for other issues that could result in airflow blockages. For instance, you should always make sure the return air intake grille is it being blocked by bookcases, sofas or any other type of furniture. You should also keep drapes and rugs clear of the intake grille.