Find the manufacture year of any Gibson AC, heat pump, or furnace from the serial number.
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How to decode the serial number
Gibson is manufactured by Nordyne (Nortek), which also makes Frigidaire, Westinghouse, Tappan, and Maytag HVAC equipment. All Nordyne brands use the same serial format.
1994 to Present
First letter is the decade code. Next two are year within decade. Next two are week.
E142312345
Position
Meaning
Example
1
Decade code — See decade table below
E
2–3
Year in decade — 14th year of decade (2014 for E-decade)
14
4–5
Week — Week 23
23
6+
Sequence — Ignore
12345
Use the decade table below to find the base year.
Nordyne Decade Code Table
First letter identifies the decade.
EE + 2-digit year = full year (E94 = 1994, E14 = 2014)
FF + 2-digit year (F01 = 2001, F15 = 2015)
GG + 2-digit year (G06 = 2006, G20 = 2020)
Where to find the serial number
Data plate on unit side panel or inside furnace cabinet.
Nordyne brands all start with a letter decade code followed by the year and week.
Decoded examples
G172312345
→ Week 23, 2017
G = 2000s-2020s decade, 17 = 2017, 23 = week 23
F144512345
→ Week 45, 2014
F = 2000s decade, 14 = 2014, 45 = week 45
Life expectancy
Expected lifespan: 12–15 years. Nordyne brands are generally budget-oriented.
Common questions
Gibson, Frigidaire, Westinghouse, Tappan, and Maytag HVAC equipment is all manufactured by Nordyne (Nortek). The same serial number decoding method applies to all these brands.
The first letter identifies the decade (E, F, or G). The next two digits are the year within that era, and the following two digits are the week of manufacture.