Example: a Carrier Compressor/Condenser Serial# 1389E54894 on a compressor unit. Air conditioning equipment age from serial number for the example above, the equipment was made after 1980. The first four digits of the serial number are week and year of manufacture, in this case, week 13 of 1989. The Goodman serial number is a ten digit code that helps us identify the age of goodman air conditioner. The date of manufacture is coded in the 1st four digits of the goodman serial number. These four digits code represent the year and the month of manufacture. Serial Number Lookup Example #. Now I will explain how to read the serial. How can I tell the age of a Goodman heat pump or air conditioner from the serial number? The first two digits of the serial number are the year of manufacture for a Goodman heat pump or air conditioner. This unit was manufactured in 2013. The serial number is located on the control board plate found by lifting the unit's front cover. Remedy: Consumers should immediately stop using and unplug the air conditioning and heating units and call the appropriate number listed above or go to www.amana-ptac.com to request a free replacement power cord. The defective part to a Goodman heating and air conditioning products distributor. For more information about the warranty, contact Goodman Consumer Affairs at 877-254-4729 or write to Goodman Consumer Affairs, 7401 Security Way, Houston, Texas 77040. This warranty gives you specific legal rights, and you may also.
How many tons is my Goodman air conditioner or heat pump?
Monday, March 18, 2019
You can determine the “nominal” condenser tonnage of your HVAC system by examining the model number on the data plate at the side of the condenser (outdoor unit). Just like the nominal size of lumber or an air conditioning filter, the exact cooling capacity may be a little more or less than the nominal rating, but it’s close.
For Goodman, you should look for two numbers at the far side of the middle of the cluster of digits in the model number that are divisible by 6 or 12, which represent the nominal BTU of the system in thousands. A ton of air conditioning equals 12,000 BTU, and 48 divided by 12 equals 4, so the data plate below indicates the system is 4 tons.
Here’s a rundown of the range you will encounter: 18 = 1.5 tons, 24 = 2 tons, 30 - 2.5 tons, 36 = 3 tons, 42 = 3.5 tons, 48 = 4 tons, and 60 = 5 tons. And this is another one for a 3 ton system.
If you are unsure whether you have found the right two numbers, you can double-check it by looking for the “RLA” rating on the data plate. RLA is an acronym for Rated Load Amperage, and is what the maximum amperage should be when the condenser up and running. If you divide the RLA by 6 for older units and 5 or 6 for newer units, you should get a number that approximates (not exactly) the tonnage of the system. Make sure you use RLA and not LRA, Locked Rotor Amperage, which is the surge of amps necessary to overcome inertia and start the system. It averages around five times the RLA.
To determine the date of manufacture of a Goodman system, see our blog post How can I tell the age of a Goodman air conditioner from the serial number?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?
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To learn more about heating and air conditioning systems, see these other blog posts:
• How can I find out the SEER of my air conditioner?
• My air conditioner won't turn on. What's wrong?
• How can I find out the size of my air conditioner?
• 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?
• Why is my air conditioner not cooling enough?
• 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 CONDITIONING page 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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