HVAC Tech Guides, Tool Reviews & Industry News

Nu-Calgon Coil Cleaning Best Practices: Acid vs. Alkaline for Microchannel Coils

Using the wrong chemical coil cleaner can strip aluminum fin protective coatings and destroy microchannel heat exchangers in minutes. Here is the definitive Nu-Calgon chemical selection guide.

Copeland Scroll Compressor Diagnostics: Acid Burnout, Overheating & Hard Starts

Learn how to diagnose locked rotor amps (LRA), internal bypass valve tripping, winding insulation breakdown, and the exact cleanup procedure following a compressor acid burnout.

HVAC Electrical Diagnostics: Using Fieldpiece Test Leads & Surge Protection

From low-voltage 24V control shorts to high-voltage ECM motor transients, here is how professional technicians isolate electrical faults and protect sensitive control boards.