The Supplying Demand 98M87 R44745-001 is a direct replacement for the HVAC furnace flame sensor that often triggers mid-cycle shutdowns when airflow is restricted. This specific part number is critical for systems where the original sensor has degraded due to carbon buildup from a clogged filter.

Check the product photo to verify the rod length and the mounting bracket shape match your existing unit. The failure point here is the sensing element itself, which loses sensitivity over time and fails to detect the flame, causing the control board to cut power to the gas valve.

This 632484R flame sensor rod is compatible with Nordyne, Intertherm, Miller, Tappan, and Frigidaire gas HVAC systems. It is designed to replace the original sensor that may be failing due to the high heat and particulate matter generated when the furnace filter is dirty.

Look at the photo to confirm the rod diameter and the specific connector type at the base. The part that fails is the metal rod, which becomes coated in residue that blocks the electrical signal, leading to the furnace shutting off before the heating cycle completes.

The 2 PCS Upgraded 52W29 package fits Lennox, Armstrong, and Ducane furnaces, specifically models G40, G41, G50, G51, G60, G61, and G71. This dual-pack option is useful if you want a spare on hand or if the first replacement also shows signs of early wear from poor filtration.

Examine the image to ensure the rod length matches your current sensor, as the 52W29 series has specific dimensional requirements. The failure mode is the sensor's inability to read the flame's electrical charge, which is exacerbated by the soot and dust that accumulate when the air filter is not changed regularly.

The 903600 furnace flame sensor rod is compatible with Intertherm, Nordyne, and Miller systems. This part is a direct swap for sensors that have become unreliable due to the thermal stress and particulate exposure common in homes with neglected filter maintenance.

Verify the rod's curvature and the mounting hole pattern in the product photo. The specific component that fails is the sensing rod, which loses its ability to complete the circuit when the flame is present, causing the system to interpret this as a safety hazard and shut down.

The 025-37499-000 gas furnace flame sensor is a precision part designed to replace the original sensor in systems that are shutting off prematurely. This part number is specific to certain HVAC configurations where the sensor's position relative to the burner is critical for accurate flame detection.

Look closely at the photo to match the rod's thickness and the bracket's orientation. The failure occurs when the sensor surface becomes contaminated by carbon deposits from a clogged filter, preventing it from detecting the flame and triggering a lockout.

The 69w43 flame sensor igniter is compatible with Lennox, Armstrong, and Ducane furnaces, replacing part numbers 69W4301, LB-74940B, and LB74940B. This sensor is essential for systems where the original part has failed to maintain a consistent flame signal during the heating cycle.

Check the product image to confirm the rod's length and the specific mounting hardware included. The part that fails is the sensing element, which becomes coated in residue from a dirty filter, causing the control board to cut power to the gas valve to prevent unsafe operation.

The Vulcan Hart 00-424194-00001 ignitor/flame sensor assembly is a combined unit that replaces both the igniter and the sensor in compatible systems. This is a critical part for furnaces that are shutting off mid-cycle due to a failure in the flame detection process.

Examine the photo to ensure the assembly's dimensions and connector types match your existing unit. The failure point is the sensor's inability to detect the flame, which is often caused by carbon buildup from a clogged filter that disrupts the airflow and flame shape.

The Seentech 0130F00010 furnace flame sensor is compatible with Goodman, Amana, and Janitrol furnaces, replacing parts B11726-06, B1172606, AP4513976, and 204885. This sensor is designed to restore reliable flame detection in systems that have been experiencing intermittent shutdowns.

Look at the product photo to verify the rod's length and the mounting bracket's shape. The part that fails is the sensing rod, which becomes coated in soot and dust from a clogged filter, preventing it from completing the electrical circuit and causing the furnace to shut off.

The Supplying Demand 0130F00008S furnace igniter replacement is a direct swap for the original igniter in systems that are failing to light or maintain a flame. This part is crucial for systems where the igniter has degraded due to the high heat and particulate matter generated by a dirty filter.

Check the image to confirm the igniter's shape and the connector type. The failure point is the igniter's inability to reach the required temperature to light the gas, which is exacerbated by the carbon buildup that occurs when the air filter is not changed regularly.