How old is my Sharp PTAC?
Serial number age decoder for Sharp PTAC and through-the-wall units: 1 format era, the decode rule in plain English, transcribed tables, and the official lookup.
- Sharp's official lookup at getsupport.sharpusa.com returns warranty / registration lookup.
Format eras
- 2010 to 2011 PARTIAL
no date in serialletter 2: T = 2010, V = 2011 (only two letters charted; GE cycle would give S=2009, Z=2012
How to read the serial
2010 to 2011 formatPARTIAL
- Year
- letter 2: T = 2010, V = 2011 (only two letters charted; GE cycle would give S=2009, Z=2012, A=2013)
- Week or month
- month = letter 1: A=Jan D=Feb F=Mar G=Apr H=May L=Jun M=Jul R=Aug S=Sep T=Oct V=Nov Z=Dec
Documented but not evaluated by the decoder: no example serial.
Trap: No real example: building-center's own sample is masked (ZT######), so example is null and the 6-digit tail is inferred from the mask. Chart covers 2010-2011 only; extending it via the GE 12-year cycle is an inference.
Where the data plate is on a PTAC
Slide the chassis out of its wall sleeve or lift the front cover: the plate is on the chassis frame or on the side of the unit.
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 Sharp 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 2010 to 2011 format is only partially confirmed (PARTIAL (masked example, 2-year chart)).
- The 2010 to 2011 format is documented but not decodable here: no example serial.
- building-center (2011 chart credited to hisearch.web.officelive.com): ZT###### - letter 1 = month, letter 2 = year, with only T=2010 and V=2011 charted. The month letters (A D F G H L M R S T V Z) and T/V year letters are exactly the GE appliance system, so this is probably Sharp-built GE-style dating (ESTIMATE). getsupport.sharpusa.com = 200 (support portal); sharpusa.com warranty/registration paths 404.
Sources
- https://www.building-center.org/sharp-hvac-age/
- img: SHARP1-Date-of-Manufacture.jpg (transcribed)
- https://getsupport.sharpusa.com/official