It’s important to keep the AC coils clean so that heat can exchange efficiently through the coils without being blocked by dirt and debris. A lack of routine maintenance on the coils can lead to higher energy bills/consumption and lead to an overheating AC system.

If the evaporator coils are dirty, heat won’t transfer out of your home as easily, and your AC unit will work harder to maintain your desired temperature. This will increase your monthly utility bill and raise the likelihood of your system breaking down prematurely.

To minimize energy usage and reduce utility costs, your air conditioner coils and blower should be cleaned at least once a year. It is estimated that dirty evaporator coils can increase the energy usage of your air conditioning system by over 30%.