How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manfuactured and modular homes
How can I tell the age of an Aspen evaporator coil or air handler from the serial number?
Sunday, June 17, 2018
The year of manufacture of Aspen air handlers and evaporator coil units is indicated by the first two numbers, after a single letter, in the serial number. So the data plate shown above indicates the evaporator coil was manufactured in 2017. The letter at the beginning of the serial number is the month of manufacture: A = January, B = February, C = March, D = April, E = May, F = June, G = July, H = August, J = September, K = October, L = November, and M = December.
And here’s another example, manufactured in 2007.
To determine other key specs of your HVAC system, see one of 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?
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To learn more about heating and air conditioning systems, see these other blog posts:
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