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Furnace Flame Sensor

Another safety feature in a furnace system is the furnace flame sensor. It helps regulate the flow of gas coming into your furnace and shuts off the gas or fuel valve if the gas burners do not light as to prevent gas build-up or worse, a catastrophic explosion.

A faulty flame sensor, as a safety measure, will shut down the whole furnace unit and may left you in cold in the middle of winter. Getting you on this page means you might think your flame sensor is going bad. So here are some signs of a flame sensor failure:

  • Gas burners light but then go out after 3-4 seconds
  • Visible soot is covering the tip of the flame sensor
  • The white porcelain on your flame sensor is broken or cracked

Good news is, it is not that hard to change a flame sensor and it is much easier and more economical to do it yourself. We have all the parts you might need, if you're not sure which part to get, please feel free to contact us and we will be happy to help you out.

  • Carrier - 48DP500613 Electrode Sensor

    Carrier - 48DP500613 Electrode Sensor

    Carrier 48DP500613 Electrode Sensor are generally used for Hot Surface Ignition (HSI) systems. It can also be used on other applications that use spark ignition and flame sensing technology. If you do not know whether this part will fit your...

    $68.60
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  • Carrier - 48GS400192 Flame Sensor

    Carrier - 48GS400192 Flame Sensor

    Carrier 48GS400192 Flame Sensor is generally used to detect gas flames and to produce a signal that issues a consequent action to run the system in the presence of a flame, or shut it down in the flame's absence. Also, flame sensors serve as a fail-safe...

    $10.43
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  • Carrier - 48VL400001 Flame Sensor

    Carrier - 48VL400001 Flame Sensor

    Carrier 48VL400001 Flame Sensor is generally used to detect gas flames and to produce a signal that issues a consequent action to run the system in the presence of a flame, or shut it down in the flame's absence. Also, flame sensors serve as a fail-safe...

    $24.53
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  • Carrier - HH79NZ039 Sensor

    Carrier - HH79NZ039 Sensor

    The Carrier HH79NZ039 sensor. The sensor has provides drop-in replacement for easy installation. This sensor replacement meets exacts design specification for optimum system performance. If you are not sure whether this replacement kit fits...

    $34.37
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  • Carrier - HH79NZ086 Thermistor

    Carrier - HH79NZ086 Thermistor

    The Carrier HH79NZ086 Thermistor is a resistance thermometer, or a resistor whose resistance is dependent on temperature.  The sensor has provides drop-in replacement for easy installation. This sensor replacement meets exacts design specification...

    $37.61
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  • Carrier - LH33WZ017 Flame Sensor

    Carrier - LH33WZ017 Flame Sensor

    Carrier - LH33WZ017 Flame Sensor has exact drop-in replacement for easy installation. This kit replacement meets exacts design specification for optimum system performance and proven reability. If you are not sure whether this replacement kit fits your...

    $45.69
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  • Carrier - LH33WZ520 Flame Sensor

    Carrier - LH33WZ520 Flame Sensor

    Carrier - LH33WZ520 Flame Sensor is generally used to detect gas flames and to produce a signal that issues a consequent action to run the system in the presence of a flame, or shut it down in the flame's absence. Also, flame sensors serve as a fail-safe...

    $10.14
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  • Carrier 50HJ401431 Sensor

    Carrier 50HJ401431 Sensor

    Carrier 50HJ401431 Sensor is an essential part on various Carrier rooftop units. It is used in the following units: 48HJE009-650 135, 48HJR009-940 135, 48PGDW04DA-60AXF, 48HJE009-660 135, 48HJR012-170 135, 48PGDW04DA-60BYU, 48HJE009-930...

    $9.25
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  • Carrier LH33CM018 Sensor Probe

    Carrier LH33CM018 Sensor Probe

    Carrier LH33CM018 Sensor Probe are generally used to detect gas flames and serves as a fail-safe in cases of flame failure such as open and short circuits, and leakage. If you do not know whether this part will fit your unit, contact us with your model...

    $89.17
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  • Carrier LH33WZ003 Electrode Sensor

    Carrier LH33WZ003 Electrode Sensor

    Carrier LH33WZ003 Electrode Sensor are generally used for Hot Surface Ignition (HSI) systems. It can also be used on other applications that use spark ignition and flame sensing technology. If you do not know whether this part will fit your unit, contact...

    $70.81
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  • Carrier LH33WZ511 Flame Sensor

    Carrier LH33WZ511 Flame Sensor This flame sensor is the same as 10-681 Robertshaw Flame Sensor. The 10-681 flame sensor is used in a system with 41-409 Hot Surface Igniter. If you do not know whether this part will fit your unit, contact us with...

    $50.00
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  • Carrier LH33WZ516 Flame Sensor

    Carrier LH33WZ516 Flame Sensor This part is sold as the LH680013, because it is the replacement part. If you do not know whether this part will fit your unit, please contact us with your model and serial number.

    $36.38
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  • Carrier LH33WZ518 Flame Sensor

    Carrier LH33WZ518 Flame Sensor

    Carrier LH33WZ518 Flame Sensor is generally used to detect gas flames and to produce a signal that issues a consequent action to run the system in the presence of a flame, or shut it down in the flame's absence. Also, flame sensors serve as a fail-safe...

    $12.05
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