Hayward Serial Numbers and Date Codes

How to Read Hayward Serial Numbers and Date Codes

The product ID tag and serial number can tell you the month and year it was manufactured, and for the Aquarite/Goldline SWCG cells the length of the warranty. The format has changed a bit through the years and below are the different formats Hayward has used.

Pumps, Filters, Cleaners, Heaters, Heat Pumps, some Incandescent Lighting and Accessories

Hayward Pump Tag

Hayward's serial numbers for all products, with the exception of some cleaners, controls, heat pumps and electronic chlorinators, are 17 digits long and begin with the numbers '21'. Often these numbers appear on product labels with spaces or parentheses.

Model number is found on the dataplate located on the bottom right of the electrical cover on Hayward Heat Pro units.

On Summit style Heat Pumps the data plate is located on the left side of the base pan

Controls, Electronic Chlorination, ColorLogic Lighting

Hayward Filter Tag

Serial numbers for Controls, Electronic Chlorination, and ColorLogic Lighting typically follow a format like this: 1M12345-1234567 (all numbers with the exception of the letter in the second position).

For products such as Aqua Rite, the serial number can be found inside the door of the control panel.

Heat Pumps, Heaters, Filters, Pumps March 2010 - July 2015

Hayward 2010 ID Tag

Format is (21) 12-1004-000002006. In this example, manufacturing date is April of 2010.

• The first two numbers (21)are common to all ID tags
• The 3rd - 4th number is the plant of manufacture
  • 10 = Canada
  • 11 = Pomona, CA
  • 12 = Clemmons, NC
  • 13 = Nashville, TN
• The 5th % 6th number will be the year & the 7th % 8th is the month.

Heat Pumps, Heaters(Early 1-05), Filters, Pumps 2005 & Forward

Hayward 2005 ID Tag

Format is (21) 120-402-000002006

• The first two numbers (21) are common to all ID tags
• The 3rd - 5th number is the plant of manufacture
  • 100 = Canada
  • 110 = Pomona, CA
  • 120 = Clemmons, NC
  • 130 = Nashville, TN
• The 6th -8th number will be the year & month Example:
  • 402 = 2004, Feb
  • 405 + 2004, May
  • 501 = 2005, Jan
  • 502 = 2005, Feb

Reading Goldline Serial Numbers - Starting 8-2011

Beginning 08-05-2011 the serial number format is 3A11284-123456.

• First Digit = 3 = 3 Year Warranty, 1 = 1 Year Warranty
• Second Digit = A = Product Class
• Third & Fourth Digit = 11 =Year = 2011
• Fifth - seventh digit = day of year manufactured (284th day of 2011)
• Digits 8 and on = 123456 = Manufacturing ID

Reading Goldline Serial Numbers

Beginning 11-01-01 the serial number format is 3A0112-123456.

• First Digit = 3 = 3 Year Warranty, 1 = 1 Year Warranty
• Second Digit = A = Product Class
• Third & Fourth Digit = 01 =Year = 2001
• Fifth & Sixth Digit = 12 = Month = December
• Digits 7 and on = 123456 = Manufacturing ID

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