What Happens If You Don’t Clean Your AC Filter?

The main job of an AC filter is to trap the dust and dirt particles. It acts as a shield between undesirable particles and other AC components. It prevents dust, debris, allergens, etc., from reaching the condenser, motor, and compressor. Suppose your AC has a HEPA filter that works more efficiently. An AC filter allows the unit to deliver clean air by trapping harmful particles. Once the AC filter gets too dirty, you must replace it.

Consequences of Not Cleaning AC Filters

Many people hardly care about replacing or cleaning the air filter for two reasons, i.e., busy routine and less understanding of the importance of air filters. But a clean AC filter is essential. If you don’t replace the air filter, you will have to face the following consequences:

  • Poor Indoor Air Quality

An air filter prevents the dirt and all other harmful particles from entering the other parts of the AC. The other AC components work efficiently and provide you with clean air, but if you don’t replace them on time, the AC filter will not be able to trap any dirt particles.

  • Freezing Up of Evaporator Coil

When the air filter is too dirty to trap, this dust decreases the efficiency of other components and leads to the build-up of ice. When there is an excessive build-up of ice on the evaporator coil, your AC unit hardly blows cool air.

  • Jammed Motor and Fan

When accumulated in the motor and fan, the harmful particles that skip the AC filter make these components jammed. Therefore, the possibility of premature AC damage becomes high, and you frequently have to look for HVAC repair near me.

  • Leaking Coolant

Dirty HVAC filters allow dirt and dust to enter the air conditioning unit. It can cause clogging in the drainage line. The clogged drain lines block the movement of the refrigerant. Thus, the refrigerant starts leaking through the drip pan.

The problem of refrigerant leakage also decreases the coolant amount, and a technician should handle the leakage problem. Therefore you should call the technician soon after you experience a decrease in the AC cooling capacity.

Steps to Clean the AC Filter

You will not have to look for AC companies in Folsom, CA, to change or clean the air filter. The steps involved in the process are simple and less time-consuming:

  • First, locate where your air filter is, reading the AC manual.
  • Then pull out and check the size and other details on the filter.
  • Spend on the same filter size and look for more efficient air filters.
  • Check the arrow on the new filter while replacing it. The arrow should be pointing towards the return air duct.
  • If it is washable, wash it with detergent, and once it gets dry, put it back.


If you are facing any issue with your air filter or air conditioning unit, Essential Air is ready to serve you. We have over three decades of experience. Our service quality is top-rated. Book our service, and we will solve your issue quickly.