BURNHAM NEW YORKER 8236040 Flame Sensor

The BURNHAM NEW YORKER 8236040 Flame Sensor is a critical safety component designed for precise flame rectification in gas-fired heating systems. Engineered specifically for compatibility with Burnham 805-810 series boilers, this probe-style sensor functions as a continuous monitoring device to ensure the presence of a stable burner flame. Utilizing high-grade stainless steel for the sensing rod and a robust ceramic insulator, the 8236040 delivers a microamp signal to the ignition control module. When a failure to detect current occurs—often due to carbon fouling or a cracked insulator—the system immediately terminates the gas valve circuit to prevent hazardous fuel accumulation. This OEM replacement part (also referenced as the Penn Y75AA-3) is a direct-fit solution for technicians troubleshooting boiler short cycling or failed ignition sequences. Its low-energy consumption (LEC) design and precise 1.0 to 6.0 microamp output range ensure high-fidelity signal transmission even in demanding thermal environments reaching up to 3,000°F.

• Ensures safe boiler operation by providing rapid response shutdown during flame failure.
• Constructed with high-temp stainless steel and professional-grade ceramic for maximum durability in high-cycle environments.
• Directly compatible with Burnham New Yorker 805 through 810 series units.
• Maintains system efficiency by preventing nuisance trips and improper combustion cycles.
• Standard single-rod design allows for straightforward installation and gap adjustment.

What are the symptoms of a failing 8236040 flame sensor?
The most common indicators are the boiler igniting for 2–5 seconds and then immediately shutting down, or the system displaying flame failure error codes. This typically results from soot buildup on the rod or a breakdown of the ceramic insulation causing a grounded signal.

Can I clean the BURNHAM 8236040 or does it need full replacement?
While light carbon deposits can often be removed with a fine abrasive pad, vertical cracks in the porcelain or severe oxidation on the rod require a full sensor replacement to maintain UL safety compliance and reliable signal strength.

Why is my boiler short cycling despite a clean sensor?
Check for proper burner grounding and incoming power polarity. If the flame rod is not deeply enough in the flame path or if the control board is not receiving the minimum microamp threshold, the system will drop the call for heat.

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.