Goodman Furnace Error Codes
One of the most widely installed furnace brands in the US, known for value-oriented pricing. A subsidiary of Daikin.
How Goodman Furnaces Display Error Codes
Refer to the Troubleshooting Codes for assistance in determining the source of unit operational problems. The dual 7-segment LED display will display an error code that may contain a letter and number. The error code may be used to assist in troubleshooting the unit. Furnace lockout results when a furnace is unable to achieve ignition after three attempts during a single call for heat. It is characterized by a non-functioning furnace and a E0 code displayed on the dual 7-segment display. Accessing the furnace's diagnostics menu provides ready access to the last ten faults detected by the furnace. Faults are stored most recent to least recent. Any consecutively repeated fault is stored a maximum of three times.
This site covers 5 Goodman furnace models and a total of 113 error code entries. Select your model below to see the full code list with causes and repair guidance.
Goodman Furnace Models
DIY-Friendly Goodman Error Codes
These error codes on Goodman furnaces are commonly resolved by a careful homeowner without a service call — typically by cleaning the flame sensor, checking filters, or inspecting the exhaust vent. Always turn off power and gas before attempting any repair.
High-Severity Goodman Error Codes
These codes indicate conditions that prevent normal furnace operation or involve safety-relevant components such as the gas valve, heat exchanger, or inducer motor. Most require a licensed HVAC technician to diagnose and repair safely.
About Goodman
Goodman Manufacturing was established in 1975 in San Antonio, Texas, by Harold V. Goodman. The company expanded its HVAC presence in 1982 when it acquired Janitrol. Harold V. Goodman led the company until his death in 1996, after which Frank H. Murray assumed the role of chairman and CEO.
The company underwent several ownership changes in the 2000s: Apollo Management acquired it in 2004 for approximately $1.43 billion, followed by an IPO in April 2006. Hellman & Friedman purchased the company in October 2007 for $1.8 billion. In August 2012, Japan's Daikin Industries acquired Goodman for $3.7 billion, establishing the current ownership structure. As of April 2022, the company was formally renamed Daikin Comfort Technologies North America, Inc., though the Goodman brand continues operating within this structure.
Goodman in the Furnace Market
Goodman has established itself since 1982 as a trusted HVAC brand, positioning its products as an affordable option trusted by independent heating and cooling professionals across North America rather than promoted directly to consumers. The company manufactures a comprehensive range of products including air conditioners, heat pumps, gas furnaces, packaged units, and air handlers. Its products are designed, engineered, and assembled in the U.S.A., and the company operates a 4.2 million square foot manufacturing facility with ISO 9001 and ISO 14001 certifications.