How can I tell the age of a Johnstone air conditioner or furnace from the serial number?
Saturday, June 23, 2018
Johnstone is a brand manufactured by the Goodman Company, and the year of manufacture is the first two digits of the serial number. So the serial number on the Johnstone furnace data plate shown below indicates it was manufactured in 1992. For the age of another brand or manufacturer, go to our blog post How do I determine the age of my air conditioner?
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)?
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?
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To learn more about heating and air conditioning systems, see these other blog posts:
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