Style 2: 0908 7238A Description: Nine (9) character serial number. York Serial Number is important to identify the date of production or age of YORK® air conditioner and furnace. The Date of Manufacture is coded in the 1st two or three digits of the serial number and represent the year and month of manufacture. The serial number (and model number) also needed when you want to check the warranty status. York serial number has sorted into two different serial numbers, the old serial number used from 1971 through 2004 and new serial number nomenclature used from through today’s. York, Luxaire and Coleman are three brands owned by Johnson Controls. It makes the new York serial numbers nomenclature is identical to Luxaire and Coleman serial number as well as how to decode. Here’s a simple guide to help you locate it: How do I find my York serial number?įinding the serial number for your York HVAC unit is essential for a variety of reasons, including warranty claims, servicing, and determining the age of your unit. Outdoor Unit: For central air conditioners and heat pumps, check the outdoor compressor/condenser unit.The most straightforward method to find your York serial number is by inspecting the unit itself. Indoor Unit: For furnaces or air handlers, open the door or panel to access the inside of the unit.Typically, there will be a label or sticker on the side or at the back of the unit. The serial number is often on a label affixed to the inner part of the door or the body of the unit. If you have retained the user manual or warranty card that came with your unit, it’s likely that the serial number is mentioned there. Often, when the equipment is installed, the installer might note down the serial number in the manual or on the warranty card for reference.Īfter you find the location of the York serial number, the next step is to decipher the code in it. This way, you can identify how old your unit is. Over the years, York has used various formats for their serial numbers, but let’s break down one of the most common formats. The Second and Fourth Characters (0 & 5): This is the third digit of the year of manufacture.The First Letter (W): This often represents the manufacturing plant.The typical format used for many years by York is a combination of letters and numbers. The Third (D): These two digits together represent the month of manufacture.If it was a 1 and 1, it would be 2011, and so forth. However, it’s crucial to understand that serial number formats can change over the years. The format described above is one of the most common ones, but there are variations, especially in older or newer units. If you have a format that doesn’t match the example, you might want to consult with a York representative or HVAC professional familiar with York systems for accurate decoding.Īdditionally, some York serial numbers can also provide information on the plant location, sequence of manufacture, and other details.