Robertshaw 1751-721 Wiring Harness

The Robertshaw 1751-721 Ignitor/Sensor Wiring Harness is a critical field-service component engineered for flame rectification systems in residential and commercial heating applications. This 48-inch 2-wire ignition harness provides the necessary link between the ignitor-sensor assembly and the ignition control module, ensuring high-integrity signal transmission for consistent flame sensing. Designed for high-heat environments, the 1751-721 harness features durable insulation to prevent signal loss or grounding issues that often lead to nuisance lockouts.

When performing a furnace ignition repair or upgrading to a modern flame rectification setup, this harness offers the reach required for complex cabinet layouts. It is specifically designed for seamless integration with Robertshaw SP715, SP735, and SP745 ignition control units. Utilizing the Robertshaw 1751-721 ensures that the microamp signal from the sensor probe is accurately delivered to the module, maintaining safe and efficient burner operation during the ignition sequence.

• Optimized Compatibility: Fully compatible with Robertshaw SP715, SP735, and SP745 series ignition controls and J Bracket 1751-715.
• Extended Reach: The 48-inch lead length allows for flexible routing in large furnace cabinets or rooftop units.
• Reliable Flame Sensing: Purpose-built for flame rectification systems to minimize resistance and electrical interference.
• Technician-Ready: Simplifies the replacement of damaged or brittle wiring during routine maintenance or HVAC emergency repairs.

• Does this harness support both local and remote sensing? Yes, this 2-wire harness is designed to facilitate the connection for ignitor and sensor leads in systems utilizing a single rod or separate probe configuration.
• Can I use this with other brands of ignition modules? While designed for Robertshaw ignition controls, it can be used in various flame rectification circuits provided the terminal connections and specifications match the HVAC technical data for your specific equipment.
• Is this harness rated for high-temperature applications? Yes, the Robertshaw 1751-721 is manufactured with heat-resistant materials suitable for the internal cabinet temperatures found in gas-fired furnaces and boilers.

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.