What To Know About Cleaning A Furnace Evaporator

Every HVAC system has several components that help it provide hot and cold air to your home. However, some of those parts need more maintenance than others. One of these parts of your HVAC system is the evaporator. It needs cleaning from time to time to keep it work, which is why it helps to know the following two things.

What's An Evaporator?

The evaporator works with the air conditioning and plays the role of removing heat from your home and transferring it to outside. It is a series of metal coils that resembles the shape of the letter A. If you ignore this part, it can easily become covered in debris and cause the part to work inefficiently, causing the air conditioner to work harder than it needs to in order to cool down your home.

Where Is The Evaporator Located?

You can find the evaporator inside your home inside the air handling unit. You should be able to easily access this part of the air handler through an access door. Just make sure that you have shut down the unit and that no power is running to it.

How Can You Tell The Evaporator Needs Cleaning?

You can perform a quick visual inspection of the evaporator coil. If it's dirty, you should be able to easily see a layer of dirt on the coil that needs to be removed. You may also have issues where the air conditioner is producing warmer than usual air, which is due to the evaporator freezing up. If you look at the evaporator, you'll notice a layer of ice on it that needs to naturally melt so you can clean the coils.

How Can You Clean The Evaporator?

Your local hardware store should sell a spray foam that can be applied directly to the evaporator. The nice thing about using these sprays is that they don't require scrubbing the coils. Simply apply the spray foam directly to the coil, and the foam will work its way into the debris and clean it off. The other option is to use a vacuum to remove as much debris as possible, then scrub between the coils using a toothbrush. Either way, you will get the job done of cleaning those coils.

For help performing this task and doing other HVAC maintenance, reach out to a local HVAC contractor. Many of these issues can be found when doing an annual inspection.


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