BASO Y75AA-3 Flame Sensing Probe

The BASO Y75AA-3 Flame Sensing Probe is a high-performance flame rectification sensor designed for precise flame detection in intermittent pilot ignition (IPI), direct spark ignition (DSI), and hot surface ignition (HSI) systems. Built with a .114-inch diameter Kanthal D rod and a Steatite ceramic insulator, this HVAC flame sensor replacement ensures reliable signal transmission to the ignition control module, preventing nuisance lockouts. This unit is electronically and physically identical to the 10-682 and Y75AA-3C models, featuring a 7/16-27 threaded mounting nut for secured installation. For veteran technicians, this BASO flame sensing probe provides a durable solution for commercial boilers, furnaces, and rooftop units. Whether you are performing a furnace flame sensor cleaning or a full replacement, the BASO Y75AA-3 delivers the high-temperature resistance necessary for demanding combustion environments. Ensure proper flame sensor maintenance by verifying the microamp signal regularly to maintain optimal equipment safety and efficiency.

• Direct Cross-Compatibility: 100% interchangeable with BASO 10-682 and Y75AA-3C, simplifying inventory for service trucks.
• High-Temperature Durability: Constructed with a Kanthal D rod and ceramic insulator to withstand extreme combustion chamber heat.
• Universal Application: Engineered for use across DSI, HSI, and IPI systems, providing flexibility for diverse boiler and furnace specs.
• Precision Sensing: The .114 DIA rod provides high sensitivity for accurate flame rectification measurements (microamps).
• Secure Mounting: Includes a 7/16-27 mounting nut to ensure the probe remains stable under high-vibration conditions.

• What is the microamp signal range for the Y75AA-3? Most BASO controls require a minimum signal of 0.07 to 0.1 microamperes for reliable operation, though typical pilot signals range higher depending on the specific module.
• Can I trim the sensing rod if it is too long? Yes, the rod can be trimmed in small increments (0.125") to match the existing probe, provided sufficient flame impingement remains.
• Does this include the lead wire? The Y75AA-3 features a spade terminal; lead wires are typically detachable and may be reused or replaced separately based on the condition of the insulation.

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.