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How old is my Midea heat pump?

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

Serial number decoder for Midea heat pump

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

Format example: C703239530315908400008

Format eras

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 heat pump

On the outdoor unit, same place as a condenser: a plate on the side or back of the cabinet near the line set. The indoor air handler carries its own plate with its own serial.

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

For scale only: the InterNACHI Standard Estimated Life Expectancy Chart for Homes lists Heat Pump at 10 to 15 years of expected service (nachi.org). That chart is a guideline, not a prediction for your unit.

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

Sources