Central Air Conditioners, Heat Pumps & Furnaces
How Old Is My American Standard?
Type the serial number from the rating label on your American Standard furnace, AC or heat pump to see when it was made and how much of its typical 16-year life is left.
Try an example:
Where to find the serial number on a American Standard
On an outdoor AC or heat pump, the rating plate is on the side of the cabinet near the copper lines. On a furnace, remove the upper front door; the label is on the inside wall or the door itself.
Tip: in a dark basement or closet, take a photo of the label with your phone's flash on and zoom in on the photo.
How to read a American Standard serial number
Year + week (2010 and later, 10 characters)
Used 2010–today
Digits 1-2 are the year and digits 3-4 are the week of the year.
Example: 19383ABC4F → September 2019 (week 38)
Single-digit year + week (2002-2009, 9 characters)
Used 2002–2009
Digit 1 is the last digit of the year (8 = 2008) and digits 2-3 are the week. These serials are 9 characters long.
Example: 71422S41G → April 2007 (week 14)
Common replacement parts for American Standard
Always match the part to the model number on your rating label, and have gas or refrigerant work done by a licensed technician.
- American Standard MOT13144 Blower Motor (1/2 HP 115V)Check price on Amazon
- American Standard IGN00145 Hot Surface IgniterCheck price on Amazon
Common questions about American Standard equipment
Where is the model and serial label on an American Standard furnace?
Inside the furnace cabinet on the blower door or inside the upper burner compartment on the left structural rail.
What is the SEER2 efficiency rating of American Standard systems?
Modern American Standard units range from 14.3 SEER2 up to 21.5 SEER2 on variable-speed AccuComfort systems.
How long does a American Standard furnace, AC or heat pump last?
About 16 years on average. Units that get yearly maintenance often last longer; units in hard-water areas, coastal air or unconditioned spaces often fail sooner.
Is the serial number the same as the model number?
No. The model number describes the product line, size and options. The serial number identifies your exact unit and contains the manufacture date. Both are printed on the same rating label.
How accurate is this age estimate?
The date comes from the published serial number formats for each brand. It is the factory date, not the installation date, and some formats repeat every 10 or 20 years. If the label shows a printed MFG. DATE, that date wins.