How to Decode Daikin Serial Numbers
Step-by-step guide to decoding any Daikin HVAC serial number. Learn the Year-Month (YYMM) format, what each digit means, and get instant results with our free decoder tool.
Step 1: Locate the Daikin Label
Find the data plate on your Daikin unit. It's usually on the side panel (outdoor units) or inside the cabinet door (indoor units). The label contains both the model number and serial number.
Step 2: Identify the Serial Number Format
Daikin uses a Year-Month (YYMM) serial number format. Do not confuse the serial number with the model number -- the serial is unique to each unit, while the model identifies the product line.
Step 3: Enter in the Decoder
Type your Daikin model or serial number into HVAC Decoder Pro. Our decoder instantly parses Daikin's encoding format and extracts manufacturing date, capacity, refrigerant type, and SEER rating.
Step 4: Review Your Results
The decoder displays a complete profile: manufacturing date, tonnage, BTU capacity, refrigerant type with phase-out status, SEER rating, and a color-coded condition indicator (Green = Good, Yellow = Aging, Red = Replace Soon).
Daikin Serial Number Format Reference
Format
Year-Month (YYMM)
Example Serial
2306A123456
Daikin serial numbers encode the manufacturing date, production facility, and unit sequence number. Our decoder handles all known Daikin serial number formats automatically.
What Your Daikin Serial Number Reveals
| Pos. | Field | Value | Meaning |
|---|---|---|---|
| 1-2 | Year of manufacture | 23 | 2023 |
| 3-4 | Month of manufacture | 06 | June |
| 5 | Plant identifier | A | Manufacturing facility |
| 6-11 | Sequential number | 123456 | Production sequence |
FAQ
Where is the serial number on a Daikin unit?
On the metal data plate -- side/back panel for outdoor units, inside the cabinet door for indoor units.
How do I read a Daikin serial number?
Daikin uses Year-Month (YYMM) format. Example: "2306A123456". Our decoder parses it automatically.
How old is my Daikin HVAC unit?
Enter your serial number in our decoder -- the manufacturing date is encoded in the Year-Month (YYMM) format.