• What is the right MERV number for my air conditioning filter? • Should I move my air conditioner into the attic? • My air conditioner won’t turn on What’s wrong? • What are the minimum requirements for bathroom ventilation? • What is an air conditioning heat recovery system? How do to know if a Lenox A/C is still under warranty? - Answered by a verified HVAC Technician. Lennox uses a code in serial number to identify date of.
Introduction All Lennox product is set up with a systematic coding system for both model numbers and serial numbers. Unit model number (including any dash numbers) and serial number must always be used when referring a problem to Lennox in regard to repair parts, literature, wiring diagrams, etc. Use of proper unit identification numbers. Serial Number/Date Code Sequence The date that a unit was manufactured can be determined by looking at the unit serial number. Compare the unit serial number to the three examples below (manufactured in 1970-77, 1978-92, or 1993-current).
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Lennox Furnace Serial Number Decoder
