OEM Carrier Straight Flame Sensor LH680013 for Model PG9MAB048100ABSA

This OEM straight flame sensor (part number LH680013) is the factory-specified replacement for the Carrier PG9MAB048100ABSA gas furnace. The flame sensor is a critical safety component: its rod sits directly in the burner flame and passes a small microamp current through the flame to ground, proving to the control board that combustion is actually occurring. When the rod becomes coated with oxidation or carbon buildup — or fails outright — the control board cannot confirm ignition and will shut off the gas valve within 5 to 8 seconds of each ignition attempt, leading to a no-heat lockout condition. Replacing the flame sensor is typically the first diagnostic step when a furnace lights and then immediately shuts down.

• Specs: Straight rod configuration | 3-1/4" rod length | Wire lead included | Replaces legacy part numbers LH33WZ514 and LH33WZ516
• OEM vs Generic: This is a factory-authorized OEM part manufactured to Carrier's exact material and geometry specifications. OEM sensors maintain consistent microamp output across the full rated temperature range, ensuring reliable flame proving and fewer nuisance lockouts compared to off-brand alternatives.
• Install Difficulty: 1/5 — One of the easiest furnace repairs available. Tools needed: 1/4" hex or nut driver, fine steel wool or emery cloth (to clean rod if reusing). Always shut off power and gas to the furnace before beginning. Disconnect the wire lead, remove the single mounting screw, swap the sensor, reconnect the lead, and restore power. Total time: under 10 minutes.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse.

Compatibility: Designed for the Carrier PG9MAB048100ABSA gas furnace. Also fits a broad range of Carrier, Bryant, Payne, and Day & Night furnace models that use the straight-rod flame sensor configuration — verify your existing part number against LH680013, LH33WZ514, or LH33WZ516 before ordering. Questions about fitment? Our HVAC parts specialists confirm compatibility before you buy.