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By continuing to use the website, you consent to our use of cookies. To learn about our use of cookies and how you can manage your cookie settings, please see our Cookie Policy. The serial number is best to use when searching for the date of manufacture.We use cookies to improve your website experience. Lennox serial numbers and date of manufacture are not always located in the same place. * Model number HJBC-110-3 is a heat pump manufactured in 1990. The model number prefix is a series of letters or numbers that identify the type of heating or cooling system and its manufacturing year. The prefix on Lennox products will tell you the year in which it was manufactured. Where to find the date of manufactureīy looking at the model number prefixes, you can find the date of manufacture. Lennox serial numbers are usually found on the back of the condensing unit.

We will also show you how to find the date of manufacture by looking at the model number prefixes on Lennox products. In this article, we will show you three different ways to locate your Lennox serial number. Luckily, there are a few ways for you to find out the information you need. It can be difficult to know where to find Lennox serial numbers and the date of manufacture. Where to Find Lennox Serial Numbers and Date of Manufacture

Lennox furnace serial number decoder