About Serial Decoder
Serial Decoder is a free resource built by HVAC technicians and appliance repair professionals to help homeowners, landlords, contractors, and real estate agents quickly decode the manufacturing dates hidden inside appliance and HVAC serial numbers.
We started this project after years of watching homeowners struggle to answer a simple question: how old is this furnace? That information is encoded in the serial number — but every manufacturer uses a different format. We built Serial Decoder to fix that.
What We Do
Our tools decode serial numbers from hundreds of brands including Carrier, Trane, Lennox, Rheem, York, Goodman, Whirlpool, GE, LG, Samsung, Maytag, and many more. Enter the serial number and get the manufacture date instantly.
Who We Are
Andrew Norman — Founder
HVAC Technician · 15+ Years Experience · EPA 608 Certified
Andrew has worked in residential and commercial HVAC installation and service for over 15 years. He founded Serial Decoder to give everyone access to the lookup tools that professionals use every day.
Our Editorial Standards
Every brand decoder has been verified against manufacturer documentation and cross-referenced with HVAC industry databases. Our blog articles are written by certified HVAC technicians and appliance repair professionals.
Get in Touch
Questions, corrections, or brand requests? Head to our Contact page. We respond within 2 business days.