025-37499-000 Gas Furnace Flame Sensor - For York Luxaire Coleman Gas Furnace - 2 Pack

025-37499-000 Gas Furnace Flame Sensor - For York Luxaire Coleman Gas Furnace - 2 Pack025 37499 000 Gas Furnace Flame Sensor Key Features 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 S1 025 37499 000 S1 02537499000 02537499000 Compatibility

025-37499-000 Gas Furnace Flame Sensor

Key Features

• 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
• S1-025-37499-000
• S1-02537499000
• 02537499000

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.