Lear Siegler®

Last manufactured in 1986.

How to determine the date of production/manufacture or age of Lear Siiegler® HVAC Systems.
The date of production/manufacture or age of Lear Siegler® HVAC equipment can be determined from the serial number located on the data plate.

Parent Company:  Nortek (formerly Nordyne Manufacturing)
Sister or similar Brands Include:   AirBloc | AMBIRAD | Benson | Broan | Frigidaire | Gibson | Intertherm | Kelvinator | Manmouth | Maytag | Miller | Nordyne | Nutone | Philco | Reznor | Tappan | Ventrol | Westinghouse

Example serial number styles/formats found:

  • Style 1: GBB030708229
  • Style 2: F3891 4228
  • Style 3: G6R9905-05028
  • Style 4:  M 1 G 9807 – 05432
  • Style 5:  E2E-9705 01234

Style 1:  GBB030708229

Description: Twelve (12) character serial number.  Begins with three (3) letter digits followed by nine (9) numerical digits.

Year of manufacture is 4th & 5th numerical digits combined.
Month of manufacture is 6th & 7th numerical digits combined.

Style 2:   F3891 4228

Description: Nine (9) character serial number (does not count the space).  Begins with one (1) letter and ends with eight (8) numerical digits.

Year of manufacture is 3rd & 4th digits combined.

Style 3:   G6R9905-05028

Description:  Twelve (12) character serial number.  Begins with a single letter, followed by a single number, then another single letter and ends with four numerical digits, followed by a dash (-) and five numerical digits.

Year of manufacture is 4th & 5th digits of the serial number combined.
Month of manufacture is 6th & 7th digits of the serial number combined.

Style 4:  M 1 G 9807 – 05432

Description:  Thirteen (13) character serial number (includes the (-) but not the spaces).

Year of manufacture 4th & 5th digits of the serial number combined.
Month of manufacture is 6th & 7th digits of the serial number combined.

Style 4: E2E-9705 01234

Description:  Thirteen (13) character serial number (includes dash (-) but not spaces).  Serial number begins with a letter followed by a number then another letter, dash(-) and ends with nine (9) numerical digits.

Year of manufacture is 5th & 6th digits of the serial number combined.
Month of manufacture 7th & 8th digits of the serial number combined.

Page last updated: 19 April 2016

Nortek Global HVAC
8000 Phoenix Parkway
O’Fallon, MO 63368
1-800-422-4328

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