Description
Product Overview
The Popbee 025-37499-000 flame sensor is engineered to replace a wide range of OEM part numbers for gas furnaces. Measuring 5 x 3 x 0.7 inches and weighing only 0.32 ounces, the sensor combines a robust metal housing with a high‑temperature ceramic sensing element. This construction resists wear, corrosion, and the intense heat cycles typical in furnace operation, delivering consistent flame monitoring over the life of the unit. The sensor detects the presence of flame after ignition and continuously verifies combustion, shutting down the gas valve if the flame is lost, thereby protecting your home from unsafe conditions.
Usage
Designed for residential forced‑air furnaces, the sensor fits standard models that list S1-025-37499-000, ACS90453BXA, or similar numbers. It is ideal for homeowners performing DIY maintenance and professional HVAC technicians handling service calls. Installation requires removing the old sensor, connecting the wiring harness, and securing the new unit in the same mounting location. 
Why Choose Us
Popbee’s reputation for quality control ensures each sensor undergoes rigorous testing for signal accuracy and durability. The use of premium ceramic material provides superior heat tolerance compared to generic replacements, reducing the risk of premature failure. Our responsive customer support is available through your Amazon order portal, guaranteeing assistance within one business day for any installation questions or concerns.
Key Features
- High‑temperature ceramic element for reliable flame detection
- Durable metal housing resists corrosion and wear
- Universal fit for multiple OEM part numbers
- Compact size simplifies installation in tight furnace compartments
- Tested for safety compliance and long‑term performance
FAQ
How do I know if my flame sensor needs replacement?
If your furnace repeatedly shuts off shortly after ignition or displays an error code related to flame detection, the sensor is likely dirty or failed and should be inspected or replaced.
Can I install the sensor myself?
Yes, the sensor is a direct bolt‑on replacement. Turn off power and gas, remove the old sensor, connect the wiring, and secure the new unit. A short instructional video is available on YouTube.
Is this sensor compatible with all furnace brands?
The 025-37499-000 model matches a broad list of part numbers used by major manufacturers, but always verify the OEM number in your furnace manual before purchasing.
What warranty does Popbee provide?
Popbee offers a one‑year limited warranty covering manufacturing defects. Contact the seller through your Amazon account for warranty service.
Will the sensor affect my furnace’s efficiency?
No. The sensor simply monitors flame presence; it does not alter fuel flow or heat output, ensuring your furnace operates at its designed efficiency.




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