When your air conditioner filter is dirty, it can cause a number of problems. The buildup of dust and debris can reduce the efficiency of your air conditioner, leading to poor cold air flow and even ice formation on the coils. This can cause the air conditioner to freeze and stop working. You may also feel warm air coming out the back of the unit if the filter is heavily soiled.
A clogged filter forces the air conditioner to work harder to keep the house cool, leading to more frequent repairs and a shorter life for the unit. To reduce the load, it's important to change the AC filter regularly. An overheated air conditioner can be a sign of a clogged filter, as it will work harder when turned on to keep the room cool. This will put more pressure on the air conditioner, causing it to produce a lot of heat.
In addition, a dirty filter can cause dirt to build up inside the air conditioner, clogging parts and causing damage. The blower has to work harder to get air through a clogged filter, resulting in reduced airflow and hot and cold spots in your home. Frost buildup on coils or fans makes it difficult for the air conditioner unit to remove heat from the air and cool your home. Replacing air filters is an easy and affordable step you can take compared to the cost of repairing or possibly replacing your HVAC system.
We recommend checking your air filter at least once a month, but advanced filters can last a little longer. If you're delaying replacing your filter due to cost, it can only be more costly in the long run. If your air conditioner is working, but the air coming out is hot or the ambient temperature never reaches the correct temperature, you should first check for a dirty AC filter. Try to clean the reusable filter at a time when the air conditioner doesn't need to be turned on anyway, such as on a cold night.