How to determine the date of production/manufacture or age of Fujitsu® HVAC Systems.

The date of production/manufacture or age of Fujitsu® HVAC equipment can be determined from the serial number located on the data plate; however, we are unable to decode their numbering system at this time.

Parent Company:  Fujitsu General Ltd.

Operated under various affiliate business entities since 1936 moving from the manufacture of radios and phonographs into home electrical appliances. Began air conditioning business in 1971 with introduction of “min min” cassette air conditioner. Company name changed to Fujitsu General Ltd. in 1985, and has continued to expand globally.  (History information from Fujitsu®)

Example serial number styles/formats found:

  • Style 1:     LUN 070188

Style 1:  LUN 070188

Description: Unknown

Unfortunately we are unable to determine the date of manufacture or age of these units.

Fujitsu offers a Warranty Lookup Tool on their website at:

This tool may assist in estimating the year of manufacture for some newer systems by providing the purchase date of registered systems.

Using the ANSI or CSA standards to determine approximate Date of Manufacture.

Most manufacturers today are required to include the manufacture compliance standard on the data tag. For the U.S. the compliance standard is typically from the American National Standards Institute (ANSI). For Canada, a common standard compliance is through the Canada Standards Association Group (CSA). Many times both standards are listed. Regardless, the specific standard will normally be listed on the data tag/plate and followed by the YEAR of the last revision (often the year is placed in parenthesis or follows the hyphen after the specific standard number). As these standards are revised or renewed approximately every 4 to 6 years, one can reasonably estimate the year of manufacture within 4-6 years from (after) the standards date.

Page last updated: 22 April 2020