Reznor 97535 Pilot Assembly

The Reznor 97535 Pilot Assembly is a critical OEM replacement part designed for field technicians maintaining Reznor commercial and industrial unit heaters. This specific LP gas pilot assembly is engineered for high-performance flame detection and ignition reliability in Q90FF-2 and compatible Series 6 heating systems. It features a precision-machined 0.034-inch orifice calibrated specifically for liquid propane to ensure a stable pilot flame and accurate feedback to the ignition controller.

For contractors servicing Mfr. Model Number 100531, this assembly provides a direct-fit solution that includes the necessary flame rod, pilot tubing, and orifices. High-grade construction materials prevent premature oxidation at the sensor tip, a common failure point that leads to nuisance lockouts. Proper installation restores the equipment’s furnace ignition system to factory specifications, ensuring safe operation and efficient gas flow regulation across the pilot burner assembly.

• Optimized Ignition: Specifically designed for LP gas applications to provide consistent pilot light performance in cold-start scenarios.
• Technical Precision: Includes a .034" orifice and integrated flame sensor for immediate millivolt feedback to the gas valve.
• Broad Compatibility: Engineered as a direct replacement for Reznor Series 6 heaters and compatible unit furnace models.
• Complete Kit: Ships with the pilot burner, tubing, orifices, and flame rod to minimize downtime during field repairs.

Common Questions & Troubleshooting

Is this pilot assembly compatible with Natural Gas?
This specific model is configured with a .034 orifice for LP gas. For Natural Gas applications, ensure the orifice is swapped or use the equivalent NG-specified assembly to maintain correct gas-to-air ratios.

What causes the pilot flame to drop out on Reznor unit heaters?
Common issues include a fouled flame rod, restricted gas flow through the 0.034 orifice, or loose wiring at the controller. Installing a new Reznor 97535 ensures the sensor provides the clean signal required to hold the gas valve open.

Can I use a universal thermocouple instead of this assembly?
While universal parts exist, the Reznor 97535 is an OEM-grade assembly that ensures the flame sensor and pilot burner are correctly positioned for the burner tray, preventing improper combustion or ignition delay.

This item is not eligible for free shipping.

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.