April 3, 2019

Cleaning Your HVAC System


Some routine cleaning of your HVAC equipment can be a simple task which can help your system run properly. Additionally, it can positively impact the quality of the air in your home which can have medical benefits. These are things you can do on your own to prevent possible damage to your equipment.

Air Filters

This is perhaps the simplest and most beneficial thing you can do to protect your HVAC equipment and the air in your home.

Air filters should be checked every month and changed every 3 months or every month if you have pets or high traffic.

Your HVAC system requires unencumbered air flow to operate properly and efficiently. As the air filter collects dirt, debris, dander, mold spores, etc. it prevents proper air flow which makes your system work harder. This puts much more work effort and strain on the motor and components.

Furry Air Filter

Indoor Unit(s)

Be sure to keep the general area around your indoor HVAC equipment free from clutter, dirt and debris. Wiping the exterior of the units down, vacuuming around the area are all helpful to keep your system running smoothly. Visually make sure the wiring looks in tact and unentangled so there are no crimps or breaks.

It is wise to vacuum the air vents and intake vents around your home as well.

Vacuum return vent

Outdoor Unit(s)

Keep your outdoor units free from debris like branches, leaves and ice or snow. This enables your system to run as it should. Your outdoor unit should be kept accessible.

In the Winter, often snow and ice can accumulate on your equipment and can be easily removed with a broom or ice scraping tool like you would use on your car.

Cleaning Around Heat Pump

Cleaning by Professional

Cleaning beyond these measures does need to be done from time to time, but should be done by your HVAC professional. These measures will include cleaning the interior of the units, sometimes requiring chemical cleaning.

A thorough cleaning will include cleaning the motor, air handler, registers, grills, fans, housings, and coils.

Ductwork will need to be professionally cleaned generally only in certain circumstances, if:

  • The ductwork becomes clogged or excessively blocked.
  • You have had asbestos or other contaminant abatement performed.
  • If you have had a mold problem or special medical issue which might be related to air quality.
  • You have an Animal Infestation.


Air Doctor Heating and Air can help you determine if you need professional cleaning done. Non chemical cleaning is provided by Air Doctor Heating and Air during your regularly scheduled maintenance.


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