How can I tell the age of an old Singer air conditioner or furnace from the serial number?
Wednesday, May 29, 2019
Every time we come across an ancient Singer HVAC system we say “this has got to be the last one we will ever see." And then another Singer turns up a few months later. Eventually they will all be gone but, in the meantime, here’s the serial number code: look for a single letter in the center of the serial number, which will denote the year of manufacture. We suspect that the adjacent two numbers are the month, but not sure.
A = 1973, B = 1974, C = 1975, D = 1976, E = 1977, F = 1978, G = 1979, H = 1980, J = 1981, K = 1982. In 1982, it became the climate control division of Snyder General and the name was dropped, although Daikin now owns the brand and manufactures mini-splits under the Singer name in Thailand. So the “F” in the serial number below indicates the unit was manufactured in 1978.
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To learn more about heating and air conditioning systems, see these other blog posts:
How To Look At A House
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site-built, mobile/manfuactured and modular homes
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