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. Key Benefits 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. Common Questions 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.
