How (not) to clean AC coils with a power washer

How (not) to clean AC coils with a power washer

Quick tip. Don’t even try.

Coils Cleaned with Pressure Washer SpeedClean

Bad Results with Power Washer on AC Coils

You know the drill. Coils need maintenance and regular scheduled cleaning to maintain solid air flow and system efficiency. So, what’s the right tool to clean them with? Well, there’s a lot of options to do it. We recommend the CoilJet Portable Coil Cleaning System from SpeedClean every time(disclosure: it’s our product!), but one thing we won’t ever recommend. A power washer.

Pictures tell a thousand words. Power washers push out thousands of PSI of water pressure. Fantastic for blasting and cleaning a huge variety of things, condenser coils is not one of them!

See these images? These are actual images from a job site. Sent directly to us.

Bad Results with Power Washer on AC Coils

See the lovely abstract artwork. Airflow now is at about 5%

This is what can happen when a power washer is used for cleaning AC coils. The water pressure can cause immediate, instantaneous damage to sensitive fins. Bending, rupturing – even blasting holes right through them. The end result? A ruined coil bed that needs replacement. Lost time, lost efficiency.

So, whatever you try, even if it’s not a one of our products, step back from the power washer. It’ll cost you more than you’d like to know.

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