Fujitsu® HVAC age

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

The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary from as little as 10 years to as many as 50 years depending on the type and quality of materials used in their manufacture. Routine upkeep/maintenance, regional weather/climate, and location/placement of the mechanical systems will all play critical roles in the longevity of these systems.

Parent Company: Fujitsu General LTD

Subsidiaries or other related brands: Fujitsu has operated under various affiliate business entities since 1936 moving from the manufacture of radios and phonographs into home electrical appliances. The company began in 1936 as Yaou Shoten Ltd., with first name change in 1955 to Yaou Denki Ltd., and again in 1966 to General Ltd. Fujitsu entered the air conditioning business in 1971 with introduction of "min min" cassette air conditioner. Teknika Electronics Co. (currently Fujitsu General America, Inc.) was established as an affiliate in North America in 1975. In 1984, General Ltd. with its various affiliate companies entered into an alliance with Fujitsu. This alliance resulted in the company name change to Fujitsu General Ltd. in 1985, and has continued to expand globally ever since. _{(History information from Fujitsu®)}

The date of production/manufacture or age of Fujitsu brand HVAC equipment IS NOT encoded within the serial number located on the rating data plate.

To determine the manufacture date of Fujitsu equipment, there are 2 options:

-- Contact Fujitsu Service Department, at (866) 952-8324, with your serial number for assistance.
-- If the system was registered and remains under warranty, the serial number can be input into their online Warranty Lookup which will provide the manufacture date, installation date, and other helpful information.

Example serial number styles/formats found:

Style 1: LTN019205
Style 2: C001294

Style 1a:   LTN019205 ^{confirmed to have been manufactured in 2014}

Style 1b: KRN016785 ^{confirmed to have been manufactured in 2013}

Style 1c:   LUN038094 ^{confirmed purchase date 05/26/2014}

Style 1d:   FTN012306 ^{confirmed purchase date 03/19/2017}

Style 1e:   KSN021789 ^{confirmed purchase date 06/16/2014}

Style 1f:    EXN029093 ^{confirmed purchase date 7/31/2019}

Style 1g:   EXA028248 ^{confirmed purchase date 7/31/2019}

Style 1h:   AEN008487 ^{confirmed purchase date 12/19/2016}

Style 1i:   DDN002064 ^{confirmed purchase date 07/24/2006}

We are told that Fujitsu uses sequential serial numbers and does not code the manufacture date into them; however, we strongly suspect they do in fact encode the manufacture year within the letter prefixes of the serial number. We have not yet been able to confirm this, determine the pattern, or determine if they skip any letters of the alphabet.

If you have good photos of Fujitsu data plates, please send them to us with any and all other known pertinent information (installation history, bill of sale, maintenance history, property age, etc.) for our continued research into their serial numbering system.

Currently to determine the manufacture date of Fujitsu equipment, there are 2 options:

- Contact Fujitsu Service Department*, at (866) 952-8324, with your serial number for assistance. ^{*Hours published on their website as of 9/07/2023 are 8am to 8pm EST}
- If the system was registered and remains under warranty, the serial number can be input into their online Warranty Lookup which will provide the manufacture date, installation date, and other helpful information.

Style 2: C001294

Unable to determine manufacture date.

Fujitsu tech services was able to indicate the unit was "manufactured sometime in the mid 1990's"... but was unable to specify further.

We are told that Fujitsu uses sequential serial numbers and does not code the manufacture date into them; however, we strongly suspect they do in fact encode the manufacture year within the letter prefixes of the serial number. We have not yet been able to confirm this, determine the pattern, or determine if they skip any letters of the alphabet.

If you have good photos of Fujitsu data plates, please send them to us with any and all other known pertinent information (installation history, bill of sale, maintenance history, property age, etc.) for our continued research into their serial numbering system.

Currently to determine the manufacture date of Fujitsu equipment, there are 2 options:

- Contact Fujitsu Service Department*, at (866) 952-8324, with your serial number for assistance. ^{*Hours published on their website as of 9/07/2023 are 8am to 8pm EST}
- If the system was registered and remains under warranty, the serial number can be input into their online Warranty Lookup which will provide the manufacture date, installation date, and other helpful information.

Fujitsu® History¹

Fujitsu has operated under various affiliate business entities since 1936 moving from the manufacture of radios and phonographs into home electrical appliances. The company began in 1936 as Yaou Shoten Ltd., with first name change in 1955 to Yaou Denki Ltd., and again in 1966 to General Ltd. Fujitsu entered the air conditioning business in 1971 with introduction of "min min" cassette air conditioner. Teknika Electronics Co. (currently Fujitsu General America, Inc.) was established as an affiliate in North America in 1975. In 1984, General Ltd. with its various affiliate companies entered into an alliance with Fujitsu. This alliance resulted in the company name change to Fujitsu General Ltd. in 1985, and has continued to expand globally ever since.

_{¹(History information from Fujitsu®)}

Every effort is undertaken to offer you correct and concise information to assist you in determining the age or manufacture date of HVAC/R equipment. Users relying on this information do so at their own risk.

Page last updated: 9/07/2023

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