How old is my Midea mini split?

Serial number age decoder for Midea mini splits: 1 format era, the decode rule in plain English, transcribed tables, and the official lookup.

Serial number decoder for Midea mini split

Serial no.

Type the serial from the data plate, not the model number. Nothing is sent anywhere; the tables are in this page.

Format example: C703239530315908400008

Midea mini split serial numbers in the era not stated format encode the year as positions 12-13 (YY), counting the leading letter as position 1 (C7032395303 15 9 ...) - plate MFG DATE 2015-9 and the month as position 14 (9 = Sep; A/B/C for Oct-Dec presumed as in the MrCool reading) (source: building-center.org).
Example: serial C703239530315908400008 decodes to September 2015.
Midea's official lookup at midea.com returns warranty / registration lookup.

Format eras

era not stated PARTIAL
A#####################positions 12-13 (YY), counting the leading letter as position 1 (C7032395303 15 9 ...) - p

How to read the serial

era not stated formatPARTIAL

Shape A##################### · example C703239530315908400008 · confidence low

Year: positions 12-13 (YY), counting the leading letter as position 1 (C7032395303 15 9 ...) - plate MFG DATE 2015-9
Week or month: month = position 14 (9 = Sep; A/B/C for Oct-Dec presumed as in the MrCool reading)

Example: serial C703239530315908400008 decodes to September 2015.

Trap: CONFLICT: the same 22-digit shape is decoded by building-center's MrCool page as position 12 = year digit, 13 = month, 14-15 = day, and by its Senville page as year at positions 17-18. Verify against a plate MFG DATE before trusting any of the three.

Where the data plate is on a mini split

Two plates: one on the side of the outdoor unit, one on the indoor head (lift the front cover or look under the unit). The two serials differ; decode the outdoor unit for the system age.

General guidance, not brand-specific: the owner's manual or the installer can point to the exact spot. See the data plate guide.

Official lookup: the authority

Open the official Midea lookup takes serial number; returns warranty / registration lookup; URL verified live

This site is a reference built from published tables. The manufacturer's own lookup wins whenever the two disagree.

What we could not confirm

The era not stated format is only partially confirmed (PARTIAL (three conflicting readings)).
No building-center page and no manufacturer page reached for Midea-brand refrigerators/laundry/microwaves. UNSOURCED.

Sources

https://www.building-center.org/midea-hvac/
img: P9190091-scaled.webp (plate photo)
https://www.midea.com/us/support/product-registrationofficial