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The genuine OEM Lennox Y2927 hot surface ignitor lights the gas burners on your Lennox furnace by heating to a high glow each time a call for heat is received. This part is central to safe, consistent furnace operation, and a factory-matched replacement guarantees the correct resistance, heat-up rate, and mounting fit for your Lennox equipment.
Common failure symptoms include no heat, a furnace that ignites intermittently or short-cycles, cold air from the vents, or an ignition-lockout error on the control board. Because hot surface ignitors are brittle and wear out over thousands of heating cycles, they are one of the most frequently replaced furnace parts. A cracked, chipped, or non-glowing ignitor should be replaced promptly.
Why OEM matters: generic replacements frequently carry incorrect resistance or fitment, leading to delayed ignition, nuisance lockouts, or repeat failures. The OEM Lennox Y2927 is manufactured to exact Lennox specifications, ensuring reliable ignition timing and maximum service life in your furnace.