Home / Brands / RunTru

How old is my RunTru unit?

RunTru is part of Trane Technologies. 4 serial formats sourced across central air conditioner, heat pump, furnace.

Serial number decoder for RunTru

Serial no.

Type the serial from the data plate, not the model number. Nothing is sent anywhere; the tables are in this page.

Format example: 130313596L

RunTru air conditioner serial numbers in the 2010 to present format encode the year as digits 1-2 (YY, 2010+) and the week as digits 3-4 (source: building-center.org).
Example: serial 130313596L decodes to week 3 of 2013.
RunTru air conditioner serial numbers in the 2002 to 2009 format encode the year as digit 1 = last digit of year (2002-2009) and the week as digits 2-3 (source: building-center.org).
Example: serial 91531S41F decodes to week 15 of 2009.
RunTru air conditioner serial numbers in the 1983 to 2001 format encode the year as letter 1 via table (table below) and the week as digits 2-3 (source: building-center.org).
Example: serial F23456789 decodes to week 23 of 1991.
RunTru's official lookup at runtruhvac.com returns warranty / registration lookup.

Decoder pages by product

2010 to present VERIFIED
#########ACentral Air Conditioner, Heat Pump, Furnace, Packaged Unit
2002 to 2009 VERIFIED
#####A##ACentral Air Conditioner, Heat Pump, Furnace
1983 to 2001 VERIFIED
A########Central Air Conditioner, Heat Pump, Furnace
1970 to 1990 VERIFIED
A##A#####Central Air Conditioner, Furnace

Official lookup: the authority

Open the official RunTru lookup takes serial number; returns warranty / registration lookup; URL verified live

This site is a reference built from published tables. The manufacturer's own lookup wins whenever the two disagree.

RunTru is treated as sharing Trane's format because the source lists it in that family; the corporate relationship itself is an estimate.
The 1970 to 1990 format is documented but not decodable here: example A92M07217 does not decode with the derived engine.
No building-center page. Parent sourced: tranetechnologies.com/en/index/brands.html lists RunTru ('designed, tested and assembled in the U.S.A.') and runtruhvac.com says 'backed by Trane' with a Trane copyright footer. Serial FORMAT is inferred from the parent only - no source decodes a RunTru serial.