OEM Carrier Straight Flame Sensor LH680013 for Model PG9MAB048080ACSA

This is the factory OEM straight flame sensor for the Carrier PG9MAB048080ACSA gas furnace. The flame sensor is a small but critical rod-style component that detects whether a burner flame is actually present after ignition. It does this by passing a small micro-amp current through the flame itself. When the sensor becomes coated with oxidation or simply wears out, the control board can no longer confirm flame presence and shuts down the gas valve within 5–8 seconds as a safety lockout — leaving you with a furnace that starts, briefly lights, then goes cold. Replacing the flame sensor is one of the most common and cost-effective furnace repairs available.

• OEM Part Number: LH680013 | Straight flame sensor rod design | Also cross-references LH33WZ514, LH33WZ516
• OEM vs Generic: This is a genuine Carrier OEM part, manufactured to exact factory tolerances for micro-amp flame signal sensitivity. Aftermarket sensors can produce marginal flame signal readings that cause nuisance lockouts or fail prematurely in high-cycle furnaces.
• Install Difficulty: 1/5 — One of the easiest furnace repairs. Turn off power and gas, locate the sensor on the burner assembly (one mounting screw), disconnect the single wire lead, swap the sensor, and restore power. Tools needed: 1/4" nut driver or flat-head screwdriver. Total time: under 15 minutes.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier PG9MAB048080ACSA gas furnace. This sensor is also used across multiple Carrier, Bryant, and Payne furnace platforms — always verify your OEM part number on the unit's data label or existing sensor before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy.