Lennox error codes (page 2)
39 documented codes with ranked causes, repair costs, and step-by-step guidance.
Lennox heat pump code chart (5) Lennox furnace code chart (34)
Lennox Furnace — Code E241 Lennox Furnace Code E241: Flame Sensed Out of Sequence Fix Lennox furnace Code E241 means flame is still present after the gas valve closes. Causes, safe checks, technician fixes and honest US repair costs. Lennox Furnace — Code E113 Lennox Furnace Code E113: High Line Voltage Fixes & Costs Lennox Code E113 means high line voltage to the furnace. Causes, safe checks, technician diagnosis and repair costs for US homeowners. Lennox Furnace — Code E115 Lennox Furnace Code E115: Low 24 VAC Causes & Fixes Lennox Code E115 means low 24 VAC from an overloaded transformer or low-voltage wiring fault. Causes, safe checks, fixes and repair costs. Lennox Furnace — Code E131 Lennox Furnace Code E131: Corrupted Control Parameters Lennox Code E131 means corrupted control parameters. Causes, safe checks, reconfiguration vs board replacement, and honest US repair costs. Lennox Furnace — Code E180 Lennox Furnace Code E180: Outdoor Sensor Fix & Cost Lennox Code E180 flags an outdoor air temp sensor fault (open, shorted, or out of range). Causes, safe checks, tech fixes and costs. Lennox Furnace — Code E204 Lennox Furnace Code E204: Gas Valve Wiring Fix & Cost Lennox Code E204 means a mis-wired gas valve. Learn the causes, safe checks, technician diagnosis, and honest US repair costs. Lennox Furnace — Code E205 Lennox Furnace Code E205: Gas Valve Relay Short Fix Lennox Furnace Code E205 means the gas valve relay is shorted or the valve is energized when it shouldn't be. Causes, fixes and repair costs. Lennox Furnace — Code E207 Lennox Furnace Code E207: Hot Surface Igniter Fix & Cost Lennox Code E207 means a hot surface igniter open circuit. See causes, safe checks, technician diagnosis and honest US repair costs. Lennox Furnace — Code E208 Lennox Furnace Code E208: Pressure Switch Open Fix Lennox E208 means the low pressure switch failed to close. Causes, safe checks, tech diagnosis and repair costs from $0 DIY to $1,200. Lennox Furnace — Code E210 Lennox Furnace Code E210: Pressure Switch Stuck Closed Fix Lennox Code E210 is listed as a low-pressure switch failed closed. Causes, safe checks, technician diagnosis and repair costs from $0 DIY to about $1,200. Lennox Furnace — Code E211 Lennox Furnace Code E211: High Pressure Switch Stuck Closed Lennox Code E211 is reported as high pressure switch failed closed. Verify the code number in your manual, then see causes, safe checks and repair costs. Lennox Furnace — Code E110 Lennox Furnace Code E110: Low Line Voltage Fixes & Costs Lennox Code E110 means low line voltage. Learn the causes, safe homeowner checks, technician diagnosis and repair costs from $0 DIY to $600+. Lennox Furnace — Code E111 Lennox Furnace Code E111: Reversed Polarity Fixes & Costs Lennox Code E111 means line voltage polarity is reversed. Causes, safe checks, technician fixes and honest US repair costs. Lennox Furnace — Code E112 Lennox Furnace Code E112: Ground Fault Causes & Fixes Lennox Furnace Code E112 means a ground fault or poor ground. Learn the causes, safe checks, technician diagnosis and repair costs. Lennox Furnace — Code 200 (ignition lockout) Lennox Furnace Code 200: Causes, Fixes & Costs Lennox furnace showing code 200 ignition lockout with no heat? What it means, causes ranked, the flame-sensor fix, safe checks, and real repair costs.