Visit our HEATING AND AIR CONDITIONING page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles. Begins with three (3) letter digits followed by nine (9) numerical digits. Will closing doors reduce my heating and cooling costs? Description: Twelve (12) character serial number.What are the most common problems with wall/window air conditioners? Serial Number format: GSD020700023 (All Nordyne Brands have serial numbers that are 12 digits long and start with a letter).Why is my air conditioner not cooling enough?.Why does it take so long to cool a house when an air conditioner has been off for a while?.Why has the thermostat screen gone blank?.What is wrong with an air conditioner when the air flow out of the vents is low?.How did homes stay cool in Florida before air conditioning?.Does an old air conditioner use more electricity as it ages?.Where is the air filter for my central air conditioner and furnace? I can’t find it?.To learn more about heating and air conditioning systems, see these other blog posts: To find the age of other home components, go to How can I find out the age of a roof? and How do I determine the age of an electrical panel? and How do I determine the age of my water heater? For life expectancies, visit What is the average life expectancy of the components of a house?įield Guide for Home Inspectors, a quick reference for finding the age of 154 brands of HVAC systems, water heaters, and electrical panels, plus 210 code standards for site-built and manufactured homes, and the life expectancy rating of 195 home components. How can I tell whether the condenser (outdoor unit) is an air conditioner or heat pump?. ![]() How can I find out the SEER of my air conditioner?.To determine other key specs of your HVAC system, see one of these other blog posts: To find the size of your Nordyne system, go to How can I tell the size of a Nordyne air conditioner or heat pump from the model number? And to figure out what all the other numbers listed on the condenser data plate mean, go to our blog post How do I understand the air conditioner or heat pump condenser label (data plate)? For the age of another brand or manufacturer, go to our blog post How do I determine the age of my air conditioner? So the serial number shown below on the data plate of a Nordyne package heat pump indicates that it was manufactured in 2015. ![]() The fourth and fifth characters in the serial number are the year of manufacture for a Nordyne system.
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