Error Code Lookup

Quickly and easily find descriptions, troubleshooting tips, and directions on clearing error codes for Lennox residential communicating equipment.

The recommendations provided by this tool are intended to be used ONLY by a licensed professional contractor. Improper service of HVAC equipment may cause property damage, serious injury, or death. See below for more detail.

HEATING AND AIR-CONDITIONING SYSTEMS, AS WELL AS INDOOR AIR QUALITY EQUIPMENT, MUST BE INSTALLED AND MAINTAINED ADHERING TO THE MANUFACTURER’S INSTRUCTIONS AND SAFETY GUIDELINES AND IN COMPLIANCE WITH ALL APPLICABLE FEDERAL, STATE, AND LOCAL LAWS, REGULATIONS, CODES, POLICIES, AND LICENSING REQUIREMENTS. IMPROPER INSTALLATION OR SERVICE OF HVAC EQUIPMENT MAY CAUSE PROPERTY DAMAGE, SERIOUS INJURY, OR DEATH.

The descriptions, troubleshooting tips, actions, and instructions suggested in this troubleshooting tool are recommendations only. Lennox makes no warranty or representation regarding these recommendations. It is the sole responsibility of the professional contractor to use his/her professional judgment in the maintenance of HVAC Equipment and to assume any liability associated with results.

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