Betta Advice: Cleaning Your Air Conditioner

Your split-system air conditioner is an investment that can stay in your home for a number of years, so it makes sense to take care of it. This includes regular cleaning, which helps keep the unit running smoothly, and keep the air in your home clean and free of allergens.

It’s important to note that the advice contained in this article is simple enough for anyone to follow in cleaning their air conditioner. Being complex systems, it’s best to leave the in-depth maintenance of your unit to a professional, for both quality and safety reasons.

If you’re reaching up high to reach your split-system air conditioner, be sure to stay safe and use a sturdy step-ladder.


Note: Only attempt the following advice when the air conditioner is fully powered down.

Cleaning the Filters

Removing the filters from your split system should be relatively easily; the front plate of the unit will generally flip up, or come away, revealing the filters. These can then be removed for cleaning.

The cleaning method does depend on how dirty the filters are. If they haven’t been washed in some time, there’s likely to be a significant build-up of grime. In this case, wash the filters in warm, soapy water with a gentle cloth. Once this is done, leave the filters outside, out of direct sunlight, to dry. With very little effort, the filter should come up looking brand new!

If there’s only a small amount of dust and dirt trapped within the filter, a quick vacuum, either with a handheld or full-size unit should do the trick.


Cleaning the Unit

While you’re taking care of the air conditioner, use a damp cloth to wipe down the front of the unit, as well as the fins. Dust and dirt can build up here as well, but be gentle on these parts; you don’t want to press too hard.

This is about the extent of maintenance the average person should be carrying out on their split system air conditioner. For anything else, it’s best to contact a professional. 

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