Modine 5H0750310000 Flame Sensor

The Modine 5H0750310000 Flame Sensor is a critical OEM safety component engineered for precise flame rectification in high-demand gas-fired heating systems. As the direct replacement for 5H75031, this Modine flame rod ensures the ignition control board receives a steady microamp signal, preventing nuisance lockouts and hazardous gas buildup. Designed for seamless integration, it is the standard replacement flame sensor for the Modine Hot Dawg HD series, as well as HDS, PTS, BTS, and PTC unit heaters.

Constructed with high-temperature resistant materials and a durable ceramic insulator, this HVAC flame sensor is built to withstand the rigorous combustion environments of industrial and commercial Modine unit heaters. Whether you are servicing a Spark Ignition or Hot Surface Ignition (HSI) system, this sensor provides the reliability required to maintain consistent furnace flame detection. Field technicians can rely on this genuine 5H0750310000 part to restore factory-spec performance across a wide range of BTU outputs, from the Modine HD30 to the Modine HD125 and larger BTS/PTP models.

• Direct OEM Fit: Engineered as the exact 5H0750310000 / 5H75031 replacement to ensure zero-modification installation.
• Enhanced Signal Stability: Optimizes flame rectification to provide a clean DC microamp signal back to the ignition control board.
• Broad Compatibility: Supports a massive range of Modine gas-fired heaters, including the popular Hot Dawg, HDS, and BTS series.
• Industrial Durability: Specifically designed to handle the thermal stress of frequent cycling in commercial workspaces and garages.

• How do I test the Modine 5H0750310000 flame sensor? Set your multimeter to DC microamps (µA). Place the meter in series between the sensor and the control board connector. A healthy sensor typically reads between 2.0 and 6.0 µA once the flame is established.
• Can I clean this sensor with sandpaper? No. Using sandpaper can leave silicon deposits that melt into a permanent insulating glass coating. Use only fine steel wool or a Scotch-Brite pad to gently remove carbon oxidation.
• What are the symptoms of a failing flame sensor? The most common sign is the "short cycle" where the burner ignites but shuts off after 4 to 10 seconds, often leading to a lockout code on the ignition module.

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.