Data-plate tool

AC and HVAC equipment age lookup

Interpret only the manufacturer serial formats supported by primary sources. Every result names its confidence and sends unsupported equipment to the manufacturer instead of guessing.

Choose the manufacturer and enter the complete serial from the equipment rating plate.

Coverage in dataset 2026-08-12.1

Rheem: Week and two-digit year can be read from the documented Rheem format. The century remains an inference and is labeled.
Carrier: Automatic interpretation is limited to the Carrier legacy 90% furnace families and serial range in the official program. Other Carrier equipment is sent to Carrier lookup/support.
Lennox: No general Lennox date-code rule is in this version. Use the official warranty lookup rather than a third-party decoder.
Trane / American Standard: No general Trane date-code rule is in this version. Use the official warranty lookup rather than a third-party decoder.
Another manufacturer: This dataset does not yet have a primary-source rule for this manufacturer.

Reviewed 2026-08-12. The maintained rule is: A format is parsed only when a manufacturer source documents the date fields or a narrowly bounded official range supports the interpretation. Unsupported formats are never guessed.

Method

This browser-only lookup uses version 2026-08-12.1 of a small, reviewed format dataset. Rheem's documented week/year rule is supported. Carrier parsing is restricted to the model families and 1993–2011 serial range in its official legacy furnace program. Other formats return no date until a primary manufacturer source is added.

What this cannot tell you

A manufacture date is not an installation date, remaining-life estimate, warranty decision, or equipment-condition assessment.
Two-digit years do not encode a century; any four-digit year inference is labeled and should be confirmed for records.
Manufacturers change formats and may use different schemes across product families, factories, and eras.