Find the manufacture year of any LG mini-split or heat pump from the serial number.
Mini-SplitHeat PumpVRF System
Enter Serial Number
How to decode the serial number
LG Electronics is a major player in the mini-split and commercial HVAC market. LG serial numbers embed the manufacture date in a standardized format.
2000 to Present
LG uses a format where specific character positions indicate year and month — position varies by product line.
401KWGN17011234
Position
Meaning
Example
Varies
Year/Month — Year 2017, Month 01 — check data plate for explicit date
1701
LG often prints the manufacture date explicitly on the data plate. Check for "DATE" or "MFG" field before decoding the serial.
Where to find the serial number
On LG outdoor units, look for the data plate on the rear panel or side access panel.
On LG indoor units (ceiling cassettes, wall units), the data plate is behind the front cover.
LG frequently prints the manufacture date directly — look for it before trying to decode the serial number.
Decoded examples
401KWGN17011234
→ January 2017 (approximate)
LG format varies — look for the explicit date on the data plate
Life expectancy
Expected lifespan: 15–18 years for LG mini-splits with proper maintenance.
Common questions
LG often prints the manufacture date (as month/year) directly on the data plate alongside the model and serial number. Check for a "DATE" or "MFG DATE" field before trying to decode the serial number.
LG mini-splits have a solid reputation for reliability. They are particularly well-regarded for their low-temperature performance and quiet operation. Expected lifespan is 15–18 years with annual maintenance.