Nordyne 632484R Flame Sensor

For service technicians working on Nordyne furnace repair, the Nordyne 632484R Flame Sensor is the direct performance-matched replacement for the legacy 632484 part number. This critical safety component utilizes flame rectification to monitor burner ignition, ensuring the gas valve only remains open when a stable flame is present. Engineered for the Nordyne Miller residential line, it is high-heat rated to operate between 537?C and 1371?C, providing long-term reliability in high-cycle G7 series furnaces. To prevent common furnace short cycling or ignition failure error codes, this OEM replacement part features a 3-5/8-inch total rod length with a 1-1/2-inch sensing tip. Proper furnace flame sensor cleaning is often a temporary fix; replacing a fouled or oxidized rod with a new 632484R ensures the control board receives a consistent microamp signal. Always verify the furnace ground connection during installation, as a poor ground bond is a frequent cause of false flame-sensing faults.

• Universal Compatibility: Optimized for Nordyne, Intertherm, Miller, and Tappan gas furnaces.
• Enhanced Durability: Robust alumina ceramic insulator and high-temperature alloy rod withstand intense thermal stress.
• Precision Proving: Provides accurate microamp feedback to the ignition control board to eliminate nuisance furnace lockouts.
• Drop-in Fit: Exact physical specifications for G7XA and G7XC series units, reducing on-site modification time.

Why does my furnace light for 4 seconds then shut off?
This is a classic symptom of a faulty flame sensor. The control board allows 4 seconds to prove flame via rectification; if the 632484R signal is weak or missing, the system terminates the gas flow for safety.

Can I clean the sensor instead of replacing it?
While cleaning with a mild abrasive can remove temporary carbon buildup, deep oxidation or cracks in the ceramic insulator require a full replacement of the 632484R flame rod to prevent recurring service calls.

Does this sensor fit both condensing and non-condensing furnaces?
Yes, this OEM part is specifically designed for Nordyne G7-series single-stage condensing and non-condensing gas furnaces that originally specified the 632484 part number.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.