Nortek HVAC Age Lookup Tool
Nortek builds the equipment behind Nordyne and licensed names like Frigidaire, Gibson, and Tappan HVAC, all made in O'Fallon, Missouri. Knowing the build date helps you plan service and estimate how much life is left. Enter your Nortek serial number, free and with no account, to find its build date and age.
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Finding Your Nortek Serial Number
Check these four spots on your HVAC system
Common Locations
What to Look For
- White or metallic manufacturer sticker
- Labeled "Serial No." or "S/N"
- Typically 8–12 characters long
- Usually near the model number
Can't find it? Try the electrical access panel on the front of the outdoor unit or inside the air handler cabinet.
Serial Number Examples
Don't worry if yours looks different — each brand has multiple formats and our system can decode most variations.
About Nortek HVAC Systems
Owned by Nortek Global HVAC
Nortek Global HVAC is the company behind Nordyne and its licensed brands, including Frigidaire heating and cooling, Gibson, Tappan, Maytag HVAC, and Westinghouse HVAC. The same business also makes Reznor and Mammoth commercial equipment. None of the licensed names are connected to their appliance counterparts; the arrangement is purely about branding.
Nortek equipment uses the long-running Nordyne serial format. The serial has a three-character prefix, then a two-digit year in positions 4 and 5 and a two-digit month in positions 6 and 7. Some units built by Rheem place the week and year near the end instead.
Common Nortek HVAC Models & Series
The most-installed Nortek residential systems on the market today, organized by tier. Knowing your series helps narrow down service parts and warranty terms.
| Series | Type | Tier | Efficiency | Notes |
|---|---|---|---|---|
| iQ Drive Inverter | Air Conditioner | Premium | Up to 19 SEER2 | Variable-speed inverter; the same chassis sold as Frigidaire, Gibson, and Tappan. |
| Ultra Two-Stage | Air Conditioner | Mid-range | Up to 17 SEER2 | Two-stage scroll compressor. |
| Performance Single-Stage | Air Conditioner | Entry | Up to 14.3 SEER2 | Single-stage volume unit. |
| Ultra MG2 Gas Furnace | Gas Furnace | Premium | Up to 96 AFUE | Two-stage condensing furnace with variable-speed blower. |
Nortek HVAC Quick Facts
Warranty
Nortek brands typically offer a 10-year parts and 10-year compressor warranty when registered within 90 days, with premium iQ Drive units sometimes adding a lifetime compressor warranty to the original homeowner. Unregistered units default to 5 years.
Expected Lifespan
AC / Heat pumps: 13 to 18 years
Furnaces: 15 to 22 years
Where It's Built
O'Fallon, Missouri, the Nortek Global HVAC headquarters and main residential plant, shared with Nordyne, Frigidaire HVAC, Gibson, Tappan, Maytag HVAC, and Westinghouse HVAC.
Price Positioning
Budget-to-mid tier; the licensed brands compete with Goodman on price, while iQ Drive premium units sit closer to mid-range Rheem.
Known Nortek Issues to Watch For
A short list of patterns reported on Nortek equipment. Most have been addressed with revised designs or service bulletins, but they're useful context if you're diagnosing an older system.
- •Because Nortek sells under so many names, finding the right service literature for an older unit sometimes means cross-referencing the model number against the Nordyne catalog.
- •Pre-2018 aluminum micro-channel coils have above-average leak rates in coastal areas compared with copper tube-and-fin designs.
- •iQ Drive inverter units are sensitive to refrigerant charge, and low charge often shows up as an inverter fault rather than warm air.
Nortek HVAC FAQs
Related HVAC Brands
Nortek shares a parent company with these brands, so they often use similar serial number formats and components.
Helpful HVAC Guides
Now that you know your Nortek system's age, these guides help you decide what to do next.
Repair or Replace Your Central Air Conditioner?
Should you repair or replace your AC? Covers the 5,000 rule, repair cost benchmarks, efficiency savings, and when replacement is the smarter choice.
MaintenanceHVAC Maintenance Checklist: What to Do Every Season
A no-fluff seasonal HVAC maintenance checklist. What to DIY each month, what a pro should do twice a year, and what it actually costs to skip it.
Buying GuideWhat Size AC Do I Need? Tonnage Calculator and Guide
How to size a central AC the right way: square footage rules of thumb, when they're wrong, and why a Manual J load calculation is worth insisting on.
Energy EfficiencyHow to Lower Your AC Electric Bill: 12 Proven Ways
Cut summer cooling costs without sweating. 12 changes ranked by payback period, with worked math on what each one actually saves.
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The free HVAC age checker
Need an HVAC pro? Get free quotes from trusted local HVAC contractors
Get QuotesAre you an HVAC contractor? Learn about our partner programShare this tool with friends!
The free HVAC age checker