Appliage

Appliage is a free web application that decodes appliance serial numbers to determine manufacture dates. Users enter the brand and serial number from the appliance rating plate, and optionally the model number. The tool applies manufacturer-specific date code rules to decode the characters representing year, month, week, or day of production.

The service supports 81 brands across kitchen and laundry appliances, HVAC systems, water heaters, and boilers. It uses multiple official sources including manufacturer date code guides, product catalogs, government energy registries, ENERGY STAR certifications, and compliance databases. Results are labeled as Confirmed (date identified by records), Estimated (one likely date), Candidates (multiple possible years), or No date (cannot decode).

Appliage is independent, not affiliated with any appliance manufacturer. It requires no signup and serves homeowners, home inspectors, property managers, repair professionals, and used appliance buyers in the US and Canada.