OEM Carrier Flame Sensor LH680013 for Model PG9MAA036080ABKA

This is the genuine OEM Carrier flame sensor (part number LH680013), factory-specified for the Carrier PG9MAA036080ABKA gas furnace. The flame sensor — also called a flame rod — is a safety-critical component that detects whether a burner flame is actually present after ignition. It passes a small electrical current through the flame; if the control board doesn't receive a confirming signal within seconds, it shuts off the gas valve as a safety measure. A failed or carbon-coated flame sensor is one of the most common reasons a gas furnace starts, runs briefly, then shuts down — typically within 5 to 8 seconds of ignition — and enters a lockout or continuous retry loop.

• Specs: Straight flame rod design | OEM part number LH680013 | Also supersedes LH33WZ514 and LH33WZ516 | Factory-matched geometry and rod length for precise flame signal detection
• OEM vs Generic: This OEM unit is manufactured to Carrier's exact tolerances for rod composition, insulator material, and connector fit. Aftermarket sensors may generate weaker microamp signals, causing nuisance shutdowns or premature re-coating — especially in older furnaces with marginal control boards.
• Install difficulty: 2/5 — Turn off power and gas before beginning. Locate the sensor in the burner assembly, remove one mounting screw, disconnect the wire lead, and reverse to install. Tools needed: 1/4" nut driver or flat-head screwdriver, needle-nose pliers. Light sanding of the rod with fine steel wool can temporarily restore a coated sensor, but replacement is the reliable long-term fix.
• Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered for the Carrier PG9MAA036080ABKA gas furnace. Cross-references include LH33WZ514, LH33WZ516, CARLH680013, FSX01001, and FLS680013. Always verify your unit's existing part number or model data plate before ordering. Our fitment team is available to confirm compatibility before you buy — no guesswork, no returns.