For your air conditioning system to work at optimum, your filter needs to be able to let air flow through it unobstructed, Clogged filters not only lead to an increase in your utility bills, but they could also compromise the entire functionality of your system. Over time, the heat exchanger in your air conditioning unit will begin to overheat because the obstructed airflow would be making it overwork itself. Leaving this undeterred causes the limit switch, which is a safe guard installed in your air conditioning unit, to fail. This in turn will make your furnace cease firing up altogether leading you to require air conditioning services. Unfortunately, some homeowners may not know the signs of a clogged filter. Here are some of the indications that your air conditioning unit's filter is clogged.

Your air conditioning unit has a reduced airflow 

One of the first signs to look out for when it comes to clogged air conditioning filters is limited airflow. You may find that your home is either not heating or cooling as fast it usually would. It is recommended to inspect the outlets in the air conditioning unit to establish whether they are working correctly. If they are, chances are the problem lies with the filter.

Your air conditioning unit's ducts and fan have dirt

Another telltale sign of clogged air filters is dirt accumulating on the unit's fan blade and ductwork. Fan blades should be cleaned on a regular basis as part of your air conditioning maintenance. Not only will they accumulate dirt from a clogged filter, but the particles that settle on the fan blades will also make its way into the filter, compounding clogging. Dirty ductwork is also a major concern. If left undeterred, mold spores can begin breeding in the ductwork, and this will compromise the quality of the air being circulated in your home. This poses a health risk to all the inhabitants of the home.

Your air conditioning unit's evaporator coils are frozen

When your air conditioning unit's filter is clogged, it limits the amount of air that passes over the evaporator coils. If the evaporator coils are not sufficiently ventilated, the condensation that forms on them will not dissipate. This leads to moisture turning icy and freezing the evaporator coils. Not only will this impede on the unit's ability to provide cool air for your residence, but it can also cause it to breakdown.

If you are unable to regularly clean or replace your air conditioning unit's filters, it is recommended to enlist air conditioning maintenance services to ensure that it stays in optimal working condition.