When a coil needs replacing
When Does a Hot Water Pressure Washer Coil Need Replacement?
Pressure washer heating coils typically fail due to two main issues:
- Hard Water Scale Accumulation: Mineral scale restricts water flow, creates internal hot spots, and causes severe pipe restriction.
- External Soot & Chemical Corrosion: Incomplete burner combustion causes acidic soot to coat the coil exterior, gradually eating through the steel until pinhole leaks develop.
Maintenance Tip: While routine descaling extends coil service life, a pinholed coil requires immediate replacement. If you need help identifying the correct coil for your machine, send us your make and serial number so our team can pull the exact matching specs. To protect your investment, keep your firing system properly tuned with our burners and burner parts.
Frequently Asked Questions
Why choose Schedule 80 steel over Schedule 40 for heating coils?
Schedule 80 pipe features roughly 33% thicker walls than standard Schedule 40. This added steel enables the coil to withstand higher operating PSI, rapid thermal cycling, and aggressive descaling solutions far longer under heavy commercial use.
How can I prevent hard water scale inside my pressure washer coil?
Using softened or filtered feed water and maintaining a consistent descaling schedule is the single biggest factor in coil longevity—often making the difference between a 3-year and a 10-year coil lifespan.
