How can I determine the age of a Mitsubishi Ductless Mini-Split heat pump from the serial number?

Friday, June 29, 2018

There are apparently several different serial number formats, but the only one we have seen is for the units made in Thailand, which are easily identified by the “T” at the end of the number. The first digit of the serial number is the last digit of the year. So “6” could be “2006” or “2016,” and you would need to look at the condition of the unit to determine which one. Here’s a recent example from an air handler manufactured in 2007.

And the data plate from the condenser unit for the same system, which was manufactured in 2008. 

    For the age of another brand or manufacturer, go to our blog post How do I determine the age of my air conditioner? For the size of a Mitsubishi unit, see What size in tons is a Mitsubishi air conditioner or heat pump from model number?

     To determine other key specs of your HVAC system, see one of these other blog posts: 

How can I find out the SEER of my air conditioner?

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

How can I find out the size of my air conditioner? 

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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 age of my air conditioner or furnace? 

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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