How often should evaporator coils be cleaned?

How often should evaporator coils be cleaned?

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

How much does it cost to clean an evaporator coil?

Evaporator coil cleaning costs $100 to $400. It costs more just because it's tough to access. You'll find it housed inside the air handler near your furnace (or inside your ductwork if you only have AC).

What does a dirty evaporator coil do?

Because it isn't absorbing enough heat, the refrigerant running through a dirty evaporator coil doesn't warm up as much as it should. This very cold refrigerant causes water vapor in your air to freeze rather than condense into a liquid. Eventually, the whole evaporator coil can frost over.