House - Furnace Parts LH680014 LH680534 Furnace Flame Sensor - For Carrier Bryant Payne Day & Night Furnaces
Furnace flame sensor replacement part with white wire and connector.
L-shaped furnace flame sensor and wiring harness with dimensions shown for LH680014 and LH680534 replacement.
Furnace flame sensor replacement part with compatibility chart for Carrier, Bryant, Payne, and Day & Night models.
Instructional graphic for LH680014 LH680534 furnace flame sensor showing proper handling by the ceramic base.
Infographic showing features of LH680014 LH680534 furnace flame sensor including ceramic insulator and mounting bracket.
Wiring harness for furnace flame sensor with control board and flame rod terminal connectors.
Four-step installation guide for LH680014 and LH680534 furnace flame sensor replacement.
Infographic showing a furnace flame sensor and common heating symptoms to fix with LH680014 and LH680534 replacement parts.
Comparison chart showing BlueStars LH680014 LH680534 furnace flame sensor features versus generic alternatives.
Furnace flame sensor replacement part with white wire and connector.
L-shaped furnace flame sensor and wiring harness with dimensions shown for LH680014 and LH680534 replacement.
Furnace flame sensor replacement part with compatibility chart for Carrier, Bryant, Payne, and Day & Night models.
Instructional graphic for LH680014 LH680534 furnace flame sensor showing proper handling by the ceramic base.
Infographic showing features of LH680014 LH680534 furnace flame sensor including ceramic insulator and mounting bracket.
Wiring harness for furnace flame sensor with control board and flame rod terminal connectors.
Four-step installation guide for LH680014 and LH680534 furnace flame sensor replacement.
Infographic showing a furnace flame sensor and common heating symptoms to fix with LH680014 and LH680534 replacement parts.
Comparison chart showing BlueStars LH680014 LH680534 furnace flame sensor features versus generic alternatives.
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LH680014 LH680534 Furnace Flame Sensor - For Carrier Bryant Payne Day & Night Furnaces

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LH680014 / LH680534 Furnace Flame Sensor

Key Features

  • Monitors the burner flame to ensure safe furnace operation
  • Signals the furnace control board to shut off the gas valve if a flame is not detected
  • Durable construction for long service life
  • Two-piece design for installation flexibility; connect pieces prior to installation

Replaces / Cross-Reference Part Numbers

  • LH680014
  • LH680534
  • LH680012
  • LH33WZ511
  • LH33WZ515
  • LH33WZ517
  • PFS014

Compatibility & Fitment

  • Fits specific furnace models from brands including Carrier, Bryant, Payne, and Day & Night
  • Commonly used in models such as: 340MAV, 345MAV, 350MAV, 355MAV, 373LAV, 58MXA, and others

When to Replace

  • Furnace burners ignite but shut off after a few seconds
  • Furnace fails to ignite, resulting in a system lockout
  • Visible corrosion or carbon buildup on the sensor rod that cannot be cleaned
  • Diagnostic error codes indicate a flame sensor fault

Installation Tips

  • Disconnect electrical power and shut off the gas supply to the furnace before servicing
  • Handle the new sensor by its ceramic base to avoid contaminating the metal rod
  • Ensure the two pieces of the sensor are securely connected before installation
  • Confirm the sensor is properly positioned in the path of the pilot or main burner flame
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  • WIDE COMPATIBILITY

    WIDE COMPATIBILITY

    Replaces Part Numbers LH680012, LH680014, LH680534, LH33WZ511, LH33WZ515, LH33WZ517. Compatible brands Carrier | Bryant | Payne | Day & Night
  • FIX FURNACE'S SYMPTOMS

    FIX FURNACE'S SYMPTOMS

    Short cycling | No heat or inconsistent heating | Delayed ignition | Error codes | Dirty flame sensor rod | Cracked ceramic insulator
  • FITS MODELS

    FITS MODELS

    330AAV, 330JAV, 333BAV, 333JAV, 398AAV, 58DHC, 58DXC, 58PAV, 58SSC, 58SXC, 58TUA, 58WAV
  • IMPORTANT NOTE

    IMPORTANT NOTE

    This is a replacement part designed to be compatible with certain appliances. Any brand names mentioned are used solely to indicate compatibility.
4 SIMPLE STEPS TO INSTALL

4 SIMPLE STEPS TO INSTALL

(*Note: Use work gloves during installation for safety. Avoid touching the metal rod part as oils from your skin can cause carbon buildup and premature failure, hold it only by the ceramic base) 1. Turn off furnace power, close the gas valve, and remove the front panel | 2. Unthread the mounting screw and slide the old sensor out | 3. Disconnect the wire from the old sensor, then attach it securely to the new one | 4. Re-thread and tighten the mounting screw to secure the new sensor

FAQ

This flame sensor is designed for use in furnaces manufactured by Carrier, Bryant, Payne, and Day & Night.
This part replaces LH680014 and LH680534. It also cross-references with LH680012, LH33WZ511, LH33WZ515, LH33WZ517, LH33WZ521, ERLH680014, and 10-681.
A common symptom of a failing flame sensor is the furnace burner igniting for a few seconds and then immediately shutting off. This happens because the sensor is unable to detect the flame and signals the control board to cut the gas supply as a safety precaution.
Replacing the flame sensor is a straightforward task that typically takes 10 to 15 minutes. You will generally only need a 1/4-inch nut driver to remove the mounting screw and a small wrench or pliers to disconnect the wire terminal.
Before installing, ensure the power to the furnace is turned off. When handling the new sensor, avoid touching the metal rod with your bare fingers, as the oils from your skin can create a residue that interferes with the sensor's ability to detect the flame. If you accidentally touch it, you can gently clean the rod with a fine-grit abrasive pad or a clean, dry cloth.
Flame sensors fail primarily due to the buildup of carbon deposits, soot, or oxidation on the metal rod over time. This insulating layer prevents the sensor from completing the electrical circuit through the flame, causing the furnace to cycle off prematurely.