Airtemp HVAC Age Lookup Tool
Airtemp started as a 1950s Chrysler brand and was revived by Nortek Global HVAC in 2012. Whether your unit is vintage or recent, the build date reveals its true age and remaining life. Enter your Airtemp serial number to find the manufacturing date and system age.
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Finding Your Airtemp 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 Airtemp HVAC Systems
Owned by Nortek Global HVAC
Airtemp has a genuinely strange history. It started as a Chrysler brand in the 1950s. Chrysler made automotive and residential air conditioning under the Airtemp name. Chrysler sold the brand, it passed through several owners over the decades, and eventually Nordyne (now Nortek Global HVAC) revived it in 2012 as a private-label budget brand.
Modern Airtemp equipment is built in the same Nortek factories as Frigidaire and Gibson HVAC. Modern Airtemp units (2012 and later) use the Nordyne standard: a three-character prefix, then a two-digit year in positions 4 and 5 and a two-digit month in positions 6 and 7. Older Airtemp units from the 1970s and 1980s used different date codes, which this tool also reads.
Common Airtemp HVAC Models & Series
The most-installed Airtemp 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 |
|---|---|---|---|---|
| AC4BD Air Conditioner | Air Conditioner | Entry | Up to 14.3 SEER2 | Single-stage scroll compressor; Airtemp's volume seller. |
| AC5BE Air Conditioner | Air Conditioner | Mid-range | Up to 16 SEER2 | Single-stage condenser with improved coil design. |
| HP4BD Heat Pump | Heat Pump | Entry | Up to 14.3 SEER2 / 7.5 HSPF2 | Single-stage heat pump for moderate climates. |
| M1B Gas Furnace | Gas Furnace | Mid-range | Up to 95 AFUE | Single-stage condensing furnace. |
| G6 Series 80% Furnace | Gas Furnace | Entry | Up to 80 AFUE | Single-stage 80% furnace for mild climates. |
Airtemp HVAC Quick Facts
Warranty
Airtemp typically offers a 10-year parts warranty and 10-year compressor warranty when registered. Coverage is shorter than premium Nortek brands and varies by distributor; check the warranty card included with your unit for exact terms.
Expected Lifespan
AC / Heat pumps: 12 to 17 years
Furnaces: 15 to 20 years
Where It's Built
O'Fallon, Missouri (Nortek Global HVAC's main residential plant). Airtemp shares production with Frigidaire, Gibson, Tappan, and Maytag-branded HVAC.
Price Positioning
Budget tier — among the lowest installed costs on the market; pricing varies significantly by region and distributor.
Known Airtemp Issues to Watch For
A short list of patterns reported on Airtemp equipment. Most have been addressed with revised designs or service bulletins, but they're useful context if you're diagnosing an older system.
- •Airtemp uses a smaller dealer network than other Nortek brands, which can make parts and warranty service harder to obtain in some markets.
- •Pre-2018 units share the Nortek aluminum-microchannel coil design that has shown above-average leak rates in coastal environments.
- •The Airtemp brand has changed hands and warranty terms multiple times; very old units (pre-2012) may not have transferable coverage.
Airtemp HVAC FAQs
Related HVAC Brands
Airtemp 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 Airtemp system's age, these guides help you decide what to do next.
Repair or Replace Your Central Air Conditioner?
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MaintenanceHVAC Maintenance Checklist: What to Do Every Season
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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
Time to repair or replace your HVAC system?
Compare free quotes from top-rated local pros near you.
Share this tool with friends!
The free HVAC age checker