OEM Lennox Gas Valve — 17H05

The genuine OEM Lennox 17H05 gas valve controls the flow of natural or LP gas into your furnace's burner assembly, opening and closing on demand from the control board to deliver safe, precisely metered fuel for ignition. It is engineered to the exact pressure and flow specifications your Lennox furnace requires, ensuring proper flame characteristics and safe operation.

When a gas valve fails, you may notice a furnace that won't ignite, delayed or rough ignition, a burner that lights then shuts off, no heat despite a call from the thermostat, or a clicking igniter with no flame. A stuck or leaking valve can also trip safety lockouts and prevent the system from running at all.

Using an OEM Lennox 17H05 valve matters because gas control components are safety-critical. Factory-original valves match the required inlet pressure, regulation, and electrical characteristics of your Lennox equipment — generic substitutes can cause improper combustion, nuisance lockouts, or hazardous conditions. Choose the OEM part for guaranteed fit, listed safety compliance, and dependable long-term performance in your Lennox system.