How can I tell the age of a Lennox heat pump or air conditioner from the serial number?
Saturday, July 21, 2018
The second two digits of the serial number are the year of manufacture for Lennox units. This unit was manufactured in 2010.
To find out the age of another brand of air conditioner or heat pump, go to How do I determine the age of my air conditioner?, which has a listing of all major manufacturers and links to instructions for decoding their serial numbers. And to determine the size of your unit, see How can I tell the size in tons of a Lennox 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)?
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To learn more about heating and air conditioning systems, see these other blog posts:
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