Common Coil Cleaning Problems & Solutions

Problem: Rust and corrosion – Corrosion is responsible for about 40 percent of equipment failures in industrial applications. Humidity, high temperatures resulting in fast chemical reactions and corrosive acidic, caustic and oxidizing gasses are all root causes of corroded systems. (Source: CED Engineering)

Solution: Use non-caustic, non-corrosive chemicals. Cleaning solutions with low penetrating agents and corrosion inhibitors safely clean coils and coat coils to prevent corrosion from occurring.

Problem: Bent or damaged AC coil fins – Pressure washers produce powerful PSI cleaning power that can be too powerful for sensitive coil beds and fins. Several chemicals on the market also damage coils by creating a chemical reaction between the cleaner and the coil surface, resulting in metal loss over time. (Source: Goodway Technologies)

Solution: Less pressure. Specialized equipment using pressure below 140 PSI or with special nozzles safely cleans coils, without damaging fins. A combination of just the right amount of pressure with a less harsh coil cleaning solution is your safest choice.

Problem: Overspray damage – Close quarters can present an overspray problem, where liquid spews outside of coils and kills plants, damages surrounding areas and can destroy a customer’s property. (Source: the NEWS)

Solution: Use a plant-friendly coil cleaner that is less harsh than acidic or caustic solutions and be sure to rinse off the residue after. Covering surrounding areas can also protect property, so you don’t end up having to cover reckless overspray fees for unhappy customers.