How old is my Goodman furnace?

1. Find the rating label: On the rating plate fixed to an inside wall of the cabinet.
2. Take a photo of the whole label, or note the model and serial numbers.
3. Check it on Appliance Age. It is free, and no account is needed.

On the rating plate fixed to an inside wall of the cabinet.

Keep the model, serial and any separate production code or printed date together. Not every serial number contains a publicly decodable date.

Goodman serial number date code

Common numeric Goodman HVAC serials · Sources checked October 12, 2026

For many Goodman heating and cooling products, the first four serial digits use YYMM: two digits for the year followed by two for the month. Read the equipment serial, not the serial on a replacement compressor.

A month must be between 01 and 12. Letters or a different arrangement can indicate another product family; do not force that serial into this numeric format.

Some packaged terminal air conditioners use another format. A manufacture date also differs from the installation date used for warranty coverage.

• Goodman manufacturer service agreement: manufacture-date convention

Use the format that belongs to this product family. A printed production date, a supported serial code or manufacturer confirmation can establish the age. Repeating year codes may leave more than one possible year; a model-series introduction date helps narrow the range but does not date your individual unit.

Furnaces typically last 15 to 25 years. Use, water quality and maintenance matter more than the brand. Change the filter every one to three months and have it serviced yearly.

54 Goodman models are currently ENERGY STAR certified, 47 of them sold in Canada. The certified models went on the market between 2024 and 2026. An older Goodman furnace may use more energy than today's certified models.

Source: ENERGY STAR open data, 2026-10-08.

Parts that wear out most often on furnaces:

• Air filter
• Hot surface igniter
• Flame sensor
• Inducer motor
• Pressure switch
• Blower capacitor

Have the model number from the rating label ready so the parts fit.

Every Goodman check is compared with Health Canada, U.S. CPSC and U.S. NHTSA recall notices.

Questions

How do I find out how old my Goodman furnace is?

Find the rating label (On the rating plate fixed to an inside wall of the cabinet), then enter the serial number or a photo of the label on Appliance Age. It checks supported serial date codes or a printed date for you, free; some formats need more information.

Where is the serial number on a Goodman furnace?

On the rating plate fixed to an inside wall of the cabinet.

Can I tell how old my Goodman furnace is by the model number?

The model number tells you which model it is, not when your unit was made. Look for a manufacture date or a supported date code in the serial number, printed next to the model number on the same label.

Can I decode a Goodman serial number myself?

Some Goodman product families have serial date codes, while others need a printed date or manufacturer confirmation. Repeated year codes can produce multiple candidate years; the model and original documents help resolve them.

How long does a Goodman furnace last?

Furnaces typically last 15 to 25 years with normal use and maintenance.

Where can I get Goodman furnace parts?

From Goodman's official parts store, or an appliance parts retailer. Have the model number from the rating label ready.

Other Goodman appliances

• Goodman air conditioner
• Goodman heat pump