1. Carrier Unit Age From Serial Number
2. Carrier Unit Serial Number Age

More blog posts about heating and air conditioning:

Age: Through the 1960s Carrier used the first digit of the serial number to indicate the. Year of manufacture. Example: 3xxxxx = 1963, 4xxxxx = 1964, 5xxxxx = 1965, etc. Beginning in 1970 Carrier began to use a letter followed by a single. Example: A1 = January 1971, B2 = February 1972, M5 = December 1975. Note: No letter I. The first two digits can be the week of the year that the unit was manufactured, with the third and fourth number indicating the year. A serial number starting with 0193, for example, may have.

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How can I tell the age of a Carrier 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 of a Carrier heat pump or air conditioner. This unit was manufactured in 2002.

For units from the late 1960s thru the late 1980s, there is a different serial number code, with the single number after an initial letter being the year of manufacture. So the serial number of the unit below indicates it was manufactured in 1978. Because the “8” may be for 1968,1978, or 1988, you want to look at the ANSI certification year, or year of construction of the home, for guidance. This home was built in 1979, so we determined it that way. Whatever year your figure out, it’s a really old system.
Also, see our blog posts How can I tell the size in tons of a Carrier air conditioner or heat pump from the model number? and How can I find out the SEER of my air conditioner? and Why is my air conditioner not cooling enough?

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To learn more about heating and air conditioning systems, see these other blog posts:

• My air conditioner won't turn on. What's wrong?

• How can I find out the size of my air conditioner?Download file from website html code.

• How can I find out the age of my air conditioner or furnace?

• How can I tell whether the condenser (outdoor unit) is an air conditioner or heat pump?

• Where is the air filter for my central air conditioner and furnace? I can’t find it?

• Does an old air conditioner use more electricity as it ages?

• How did homes stay cool in Florida before air conditioning?

• What is wrong with an air conditioner when the air flow out of the vents is low?

• Why has the thermostat screen gone blank?

• Why does it take so long to cool a house when an air conditioner has been off for a while?

Carrier Unit Age From Serial Number

• What are the most common problems with wall/window air conditioners?

• Will closing doors reduce my heating and cooling costs?

Visit our HEATING AND AIR CONDITIONINGpage for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.

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