How Old Is My Goodman Furnace?
The first two digits of a Goodman, Amana or Janitrol serial number are the year and the next two are the month. Type the serial number from your furnace's data plate below.
Where the serial number is on a furnace
Take off the front lower panel (turn the power off first). The data plate is a metal or foil sticker on the inside of the door or on the side of the cabinet, next to the blower. The serial number is usually labelled "Serial No.", "S/N" or "Ser. No."
How to read a Goodman serial number
The first two digits of a Goodman, Amana or Janitrol serial number are the year and the next two are the month.
10 digits, all numbers
YY MM ######
- Digits 1 and 2 are the year: 16 means 2016.
- Digits 3 and 4 are the month: 09 means September.
Example: 1609123456
Older 9-digit serials
YY #######
- Digits 1 and 2 are the year. The month is not shown.
Example: 001112581
Packaged terminal units (hotel-style wall units) built for Goodman by Daikin use letters and are not decoded yet.
How long does a furnace last?
Most furnaces last 15 to 20 years. Yearly servicing, the local climate and how hard it works all move it within that range. Past 15 years, it is worth getting a replacement price before the unit fails, so you aren't forced into a rushed decision.
Furnaces made before 1992 were built before the federal 78% efficiency minimum. If yours is that old, a new 95% furnace could cut your heating fuel use by a quarter or more.
Questions
How do I find the age of my Goodman furnace?
The first two digits of a Goodman, Amana or Janitrol serial number are the year and the next two are the month. You'll find the serial number on the data plate. Take off the front lower panel (turn the power off first). The data plate is a metal or foil sticker on the inside of the door or on the side of the cabinet, next to the blower. The serial number is usually labelled "Serial No.", "S/N" or "Ser. No."
How long does a Goodman furnace last?
Like most furnaces, a Goodman typically lasts 15 to 20 years with regular servicing.
Related
How sure are these dates? Checked against official records (recall notices or data plates with printed dates). How we test the decoder.
Keeping an older furnace going
- Furnace air filter: Change it every 1 to 3 months. Check the size printed on the old filter.
- Carbon monoxide detector plug in: Any gas furnace, and especially an older one, should have a CO alarm nearby.
- Smart thermostat: Cuts run time on any system, old or new.