As summer heatwaves approach, proper cooling becomes vital for safety and comfort, especially in older homes without central air.
Industry experts say that regular maintenance of a window air conditioning unit can significantly extend its lifespan, maximize energy efficiency, and protect your health.
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Essential Window AC Maintenance Steps
Clean the filters at the beginning and end of each cooling season. Remove the front panel, slide out the washable filter, and shake off debris.
Wash it by hand with mild dish detergent, then rinse thoroughly. Once a year is generally enough, but more frequent cleaning may be needed depending on air quality.
Check the coils before installing the unit.
Remove the outer casing and use a vacuum with a hose attachment to clean dust from the evaporator coils at the front and condenser coils at the back.
This ensures optimal heat removal.
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Allow condensation to drain properly. Check the manufacturer guidelines for required slope or built-in pan.
Install the unit with a slight downward tilt if needed. Preventing standing water is critical to avoid mold growth, mosquito breeding, and harmful bacteria like legionella.
Store the unit correctly when summer ends. Keep the window AC completely upright, just as it would sit in the window.
Never flip it on its side during storage, as this can permanently damage the compressor.
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Learn how to properly maintain, troubleshoot, and safely operate your window AC unit during a heatwave according to HVAC industry experts.
