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airheatman
airheatman, HVAC Technician
Category: HVAC
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Experience:  Furnace, A/C and heat pump specialist.
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Hello, What is the age of a Unitary A/C S/N WAMM036074 and

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Hello, What is the age of a Unitary A/C S/N WAMM036074 and a Unitary gas furnace S/N S2113802? 2002 and 2003 respectively? Thank you, Greg
Hello. My name is XXXXX XXXXX I'll do my best to help. Troubleshooting often requires meters and test equipment. Let's get started and see what we can do.
Ac was manufactured in January 1982 or 2003
York (Unitary products usually have 3 to 4 letters in beginning. Are you sure the furnace is also Unitary and the serial number only has one letter?
If the third digit might be an L instead of a 1, that would reflect either 1981 or 2002.
Given the information you are giving,.I am suspecting 2003 on the ac and 2002 on the furnace.
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