Quick tip. Don’t even try.

You know the drill. Coils need maintenance and regular scheduled cleaning to maintain air flow and therefore efficiency on the system. 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, 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. Even smaller battery operated power washers have hundreds of PSI. 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.


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.

Now our pitch. The CoilJet portable coil cleaning system is specially designed to eliminate this issue. It produces a powerful stream of water that’s limited to 125 PSI of pressure at 1/2 gallon per minute flow of water. Plenty of pressure to blast through dirt and grime but yet won;t damage sensitive fins. And why 1/2 gallon of water per minute? So you can also use the CoilJet inside on evaporator coils.

We also have a product called the CondenserNeedle. Specifically designed for outside condenser coils, this product attaches to a standard water hose and quickly – safely – cleans condenser coil beds.

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

Check out our products mentioned in this article:

CoilJet® Portable Coil Cleaning System

CondenserNeedle Garden Hose Condenser Coil Cleaner

SpeedyFoam Coil Cleaner