House - Furnace Parts [Lifetime Warranty] 025-37499-000 Gas Furnace Flame Sensor - Pack of 2
Two 025-37499-000 gas furnace flame sensors with white ceramic insulators and metal mounting brackets.
025-37499-000 gas furnace flame sensor component shown with a compatible furnace unit.
Two 025-37499-000 gas furnace flame sensors for Luxaire and York heating systems.
Diagram of 025-37499-000 gas furnace flame sensor showing mounting bracket, ceramic insulator, and metal rod components.
Two 025-37499-000 gas furnace flame sensors with white ceramic insulators and metal mounting brackets.
Technician performing a quick installation of a 025-37499-000 gas furnace flame sensor.
Single 025-37499-000 gas furnace flame sensor replacement part shown in a promotional graphic.
Comparison chart showing BlueStars 025-37499-000 gas furnace flame sensor features versus standard aftermarket parts.
Single 025-37499-000 gas furnace flame sensor replacement part with mounting bracket and ceramic insulator.
Two 025-37499-000 gas furnace flame sensors with white ceramic insulators and metal mounting brackets.
025-37499-000 gas furnace flame sensor component shown with a compatible furnace unit.
Two 025-37499-000 gas furnace flame sensors for Luxaire and York heating systems.
Diagram of 025-37499-000 gas furnace flame sensor showing mounting bracket, ceramic insulator, and metal rod components.
Two 025-37499-000 gas furnace flame sensors with white ceramic insulators and metal mounting brackets.
Technician performing a quick installation of a 025-37499-000 gas furnace flame sensor.
Single 025-37499-000 gas furnace flame sensor replacement part shown in a promotional graphic.
Comparison chart showing BlueStars 025-37499-000 gas furnace flame sensor features versus standard aftermarket parts.
Single 025-37499-000 gas furnace flame sensor replacement part with mounting bracket and ceramic insulator.
Lifetime Warranty

[Lifetime Warranty] 025-37499-000 Gas Furnace Flame Sensor - Pack of 2

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2 Packs 025-37499-000 Gas Furnace Flame Sensor

Key Features

  • Package contains two (2) flame sensors.
  • Detects the presence of flame in the burner assembly.
  • Signals the furnace control to shut off the gas valve if no flame is detected, preventing unburnt gas accumulation.
  • Constructed from durable, high-temperature resistant materials for longevity.
  • Direct-fit replacement for specified models.

Replaces / Cross-Reference Part Numbers

  • 025-37499-000
  • 1-025-37499-000
  • S1-025-37499-000

Compatibility & Fitment

  • Fits select gas furnace models from brands including York, Luxaire, and Coleman.
  • Confirmed fit for models such as CP9C080812MP12C, CP9C080B12MP11, CP9C080B12MP12C, CP9C080C16MP12C, ACS90453BXA, and ACS90703BXA.
  • Verify compatibility by checking your furnace's original part number or service manual.

When to Replace

  • Furnace ignites but shuts down after a few seconds.
  • Main burners fail to remain lit during the heating cycle.
  • Visible carbon buildup, corrosion, or pitting on the sensor's metal rod.
  • Cracked or damaged porcelain insulator.

Installation Tips

  • Disconnect all electrical power to the furnace before servicing.
  • Locate the flame sensor, typically mounted with a single screw near the last burner in the ignition sequence.
  • Remove the mounting screw and disconnect the single wire.
  • Handle the new sensor by its ceramic base; avoid touching the metal rod with bare hands as skin oils can damage it.
  • Install the new sensor, ensuring it is correctly positioned in the flame path.
  • Reconnect the wire, restore power, and test the furnace for proper operation.
Brand Model Number
Fits models CM8M080B12MP11, CM8M080C16MP11, CM8M100C16MP11, CM8M100C20MP11, CM9M060812MP11, CM9M080B12MP11, CM9M080C16MP11, CM9M100C16MP11, CM9M100C20MP11, CM9M120D20MP11, CMBM060A12MP11, CMBM120C20MP11, CMLM080812MP11, CMLM060A12MP11, CMLM080B12MP11, CMLM080C16MP11, CMLM0B0C16MP11, CMLM100C16MP11, CMLM100C20MP11
Fits models CMLM120C20MP11, CP8C060A12MP11, CP8C080B12MP11, CP8C080C16MP11, CP8C100C16MP11, CP8C100C20MP11, CP8C120C20MP11, CP9C120020MP12C, CP9C120D20MP12C, CP9C060B12MP11, CP9C060B12MP12C, CP9C080812MP12C, CP9C080B12MP11, CP9C080B12MP12C, CP9C080C16MP12C, CP9C080C16MP11, CP9C100C16MP11, CP9C100C16MP12C, CP9C100C20MP11, CP9C100C20MP12C
Fits models CP9C120020MP11, CPLC120C20MP12C, CPLC060A12MP11, CPLC060A12MP12C, CPLC080812MP12C, CPLC080B12MP11, CPLC080B12MP12C, CPLC080C16MP11, CPLC080C16MP12C, CPLC100C16MP11, CPLC100C16MP12C, CPLC100C20MP11, CPLC100C20MP12C, CPLC120C20MP11, DGAD060CD, DGAD060CDG, DGAD060CDH, DGAD060CDJ, DGAD060CDK, DGAD060CDL, DGAE080CD, DGAE080CDG, DGAE080CDH, DGAE080CDJ, DGAE080CDK, DGAE080CDL, DGAF100CD, DGAF100CDG, DGAF100CDH, DGAF100CDJ, DGAF100CDK, DGAF100CDL
Fits models FC9080C20UP11, FC91060B12DH11, FC91060B12UP11, FC91080B12DH11, FC95080B12UP11, FC95080C16DH1IA, FC95120D20UP11A, FC95135D20UP11B, FC9C060B12DH11, FC9C060B12UP11, FC9C080B12UP11, FC9C080B12DH11, FC9C080C16DH11, FC9C080C16UP11, FC9C100C16DH11, FC9C100C16UP11, FC9C100C20DH11, FC9C100C20UP11, FC9C120D20DH11, FC9C120D20UP11, FC9M060B12DH11
Fits models FC9M060B12UP11, FC9M080B12DH11, FC9M080B12UP11, FC9M080C16UP11, FC9M080C16DH11, FC9M100C16DH11, FC9M100C16UP11, FC9M100C20DH11, FC9M100C20UP11, FC9M120D20DH11, FC9M120D20UP11, FC9S100C20UP11, FC9S120D20DH11A, FC9S120D20UP11, FC9S120D20UP11B, FC9S135D20UP11, FC9S040A12DH11, FC9S040A12DH11A, FC9S040A12UP11, FC9S040A12UP11A, FC9S040A12UP11B
Fits models FC9S040A12UP11, FC9S060B12DH11, FC9S060B12DH11A, FC9S060B12UP11, FC9S060B12UP11A, FC9S060B12UP11B, FC9S080812DH11, FC9S080B12DH11A, FC9S080B12DH11, FC9S080B12UP11, FC9S080B12UP11A, FC9S080B12UP11B, FC9S080C16DH11, FC9S080C16DH11, FC9S080C16UP11, FC9S080C16UP11A, FC9S080C16UP11B, FC9S080C20UP11, FC9S080C20UP11A, FC9S080C20UP11B, FC9S100C16DH11
Fits models FC9S100C16DH11A, FC9S100C16DH11, FC9S100C16UP11, FC9S100C16UP11A, FC9S100C16UP11B, FC9S100C20DH11, FC9S100C20DH11A, FC9S100C20UP11B, FC9S120D20DH11, FC9S135D20UP11A, FC9T040A12UP11, FC9T040A12UP11A, FC9T040A12UP11B, FC9T060BI2DH11A, FC9T060B12DH11, FC9T060B12UP11, FC9T060B12UP11A, FC9T060B12UP11B, FC9T080B12DH11.
Note: This product is a replacement part designed to be compatible with certain appliances. Any brand names mentioned are used solely to indicate compatibility

FAQ

This flame sensor is commonly used on select York, Luxaire, and Coleman gas furnaces. Matching by part number is the safest method: 025-37499-000, 02537499000, S1-025-37499-000, and S1-02537499000. Because furnace parts can vary by model and serial range, confirm the number on your original sensor or check your furnace model's parts list before ordering.
Known cross-reference numbers include 025-37499-000, 02537499000, S1-025-37499-000, S1-02537499000, ACS90453BXA, ACS90703BXA, ACS90704CXA, ACS90904CXA, ACS90905DXA, ACS91155DXA, P1257001F, P1257002F, P1257003F, P1257004F, P1257005F, P1257007F, P1257008F, P1257009F, and P1257010F. Always verify the exact part number used in your furnace documentation or on the original part.
A failing flame sensor often causes the burners to ignite and then shut off a few seconds later. Other common symptoms include short cycling, repeated ignition attempts, intermittent heat, or a furnace that starts the inducer and ignition sequence but will not stay lit. Since the flame sensor proves burner flame to the control board, contamination or failure can interrupt normal heating operation.
Replacement is usually one of the simpler gas furnace repairs. On many units, the sensor is held in place by a single 1/4-inch hex-head screw, and the job often takes about 10 to 20 minutes. Basic tools are typically a nut driver or socket, and possibly gloves. Turn off electrical power to the furnace before servicing, remove the mounting screw, slide out the old sensor, install the new one, and reconnect it the same way.
Yes, if the sensor is only dirty, careful cleaning may restore operation. Carbon buildup and oxidation on the rod can weaken the flame-proving signal. Lightly clean the sensor rod with a fine abrasive pad or very fine sandpaper, then reinstall it. If the furnace still will not stay lit, or the sensor is damaged, replacement is the better fix.
Before replacing the sensor, confirm the furnace issue is not caused by something else in the ignition system. Check for a dirty burner, poor burner flame carryover, loose sensor wire connection, poor grounding, or a cracked porcelain insulator on the old sensor. If the furnace lights briefly and shuts down, the flame sensor is a strong suspect, but burner flame quality and grounding should also be checked.
Most flame sensor problems are caused by normal contamination rather than the rod burning out completely. Over time, oxidation, soot, and combustion residue build up on the metal rod and reduce its ability to sense flame. Poor combustion, dirty burners, moisture, and repeated heating cycles can all shorten service life or cause intermittent flame-sensing problems.