Fujitsu HVAC Age Lookup Tool
Decode your Fujitsu serial number to find the manufacturing date, system age, and maintenance recommendations. Free and instant. No account needed.
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Finding Your Fujitsu Serial Number
Check these four spots on your HVAC system
Common Locations
What to Look For
- White or metallic manufacturer sticker
- Labeled "Serial No." or "S/N"
- Typically 8–12 characters long
- Usually near the model number
Can't find it? Try the electrical access panel on the front of the outdoor unit or inside the air handler cabinet.
Serial Number Examples
Don't worry if yours looks different — each brand has multiple formats and our system can decode most variations.
About Fujitsu HVAC Systems
Owned by Fujitsu General
Fujitsu General is a subsidiary of Fujitsu Limited that makes HVAC equipment, primarily ductless mini-split and multi-zone systems. In North America, Fujitsu is one of the top-selling mini-split brands alongside Mitsubishi and Daikin. The company has been making air conditioning equipment since the 1950s.
There's a genuine limitation here: Fujitsu does not encode the manufacture date in the serial number the way most brands do. The serial identifies the unit and production run, but not the date. Enter your serial number above and the model lookup will attempt to identify your unit's manufacture period from available records.
Common Fujitsu HVAC Models & Series
The most-installed Fujitsu residential systems on the market today, organized by tier. Knowing your series helps narrow down service parts and warranty terms.
| Series | Type | Tier | Efficiency | Notes |
|---|---|---|---|---|
| Halcyon XLTH Hyper-Heat | Ductless Mini-Split | Premium | Up to 33 SEER2 | Cold-climate inverter heat pump rated to -15°F at 100% capacity; one of Fujitsu's flagship efficiency leaders. |
| Halcyon LMAH Multi-Zone | Ductless Mini-Split | Premium | Up to 22 SEER2 | Multi-zone outdoor unit supporting 2-8 indoor heads. |
| Halcyon Slim Duct ARU | Concealed Duct | Mid-range | Up to 22 SEER2 | Slim-profile ducted indoor unit for whole-room concealed installs. |
| ASU Wall Mount Single-Zone | Ductless Mini-Split | Mid-range | Up to 22 SEER2 | Standard wall-mount head common in additions, ADUs, and garages. |
| Airstage VRF V-III | VRF Commercial | Premium | Variable | Variable refrigerant flow system for multi-zone commercial buildings. |
Fujitsu HVAC Quick Facts
Warranty
Fujitsu offers a 12-year parts and 12-year compressor warranty on Halcyon Pro Elite-Contractor-installed equipment when registered. Standard installations get 10 years parts and 7 years compressor. Coverage transfers to subsequent homeowners on most residential models.
Expected Lifespan
AC / Heat pumps: 18 to 25 years
Where It's Built
Fujitsu mini-splits and VRF equipment are manufactured at Fujitsu General plants in Thailand, China, and Japan. There is no US-based final assembly.
Price Positioning
Premium tier — Halcyon mini-splits cost 25-40% more than budget brands like Pioneer or Senville, comparable to Mitsubishi M-Series.
Known Fujitsu Issues to Watch For
A short list of patterns reported on Fujitsu equipment. Most have been addressed with revised designs or service bulletins, but they're useful context if you're diagnosing an older system.
- •Halcyon mini-splits are sensitive to flare-fitting torque on the line set; under-torqued connections leak slowly over years and are the #1 service call on properly-spec'd installs.
- •Indoor units in humid climates can develop drain pump failures around year 5-7; a relatively cheap part to replace but disruptive when it happens.
- •Some 2014-2018 multi-zone outdoor units had defrost-control issues in very cold conditions; firmware updates from Fujitsu addressed most cases.
Fujitsu HVAC FAQs
Related HVAC Brands
Fujitsu shares a parent company with these brands -- they often use similar serial number formats and components.
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