They may also be listed on the software's physical packaging or a CD/DVD jewel box. Software - Software serial numbers, also known as product identification numbers and CD keys, may be accessible by logging into the software website with a verified user account. 5498L will give you the place, year and month of manufacture for the Lennox air conditioning unit. Use the serial number 5498L9988 for an example. Write down the first five digits of the Serial Number. Hardware - A serial number for a hardware device is often on the bottom or back of the device. Find the series of numbers and the letter that follow the word Serial on the identification plate. Most serial numbers have at least six or seven characters, and some serial numbers have twenty or more. Serial numbers are as follows: first two digits is the plant. How many characters make up a serial number differs greatly, depending on the manufacturer, product, and model. Lennox Serial Number Lookup In the furnaces, this serial number is given in the interior of the cabinet but in other products, the serial number is given on the identification plate on the outer surface of the unit. 4CE0460D0Gĭespite the name, a serial number often contains letters and numbers.

The sequence of letters and digits in the Lennox model number reflects. Pictured is an example of what a serial number may look like on the back or side of a computer. Use of proper unit identification numbers and serial numbers will greatly help. A serial number allows a company to identify a product and get additional information about it for replacement or to find compatible parts.

Sometimes abbreviated as Serial No., SN, or S/N, a serial number is a unique number used for identification and inventory purposes.

Lennox serial number identification