Rheem-Ruud 62-23556-08 DSI Ignitor

The Rheem-Ruud 62-23556-08 DSI Ignitor is a critical direct spark ignition (DSI) component engineered for precise flame initiation in residential and light commercial HVAC systems. This furnace electrode assembly is designed to withstand the high temperatures characteristic of the combustion chamber, ensuring reliable ignition cycles and preventing furnace flame sensor lockout issues. As a genuine OEM furnace replacement part, the 62-23556-08 features a robust ceramic insulator and durable metal probe geometry optimized for specific Rheem, Ruud, and WeatherKing gas valves and control boards. Proper installation requires careful alignment to maintain the correct spark gap, preventing HVAC direct spark ignition failure or intermittent ignition sequences. This furnace ignitor replacement is essential for technicians addressing furnace ignition system troubleshooting, providing the exact electrical characteristics and structural dimensions required to restore factory-spec heating performance without modifying the burner assembly or mounting bracket.

• Direct Spark Integration: Optimized for high-voltage pulse signals from the ignition control module to ensure instantaneous gas ignition.
• OEM Fitment: Exact physical specifications for Rheem-Ruud 62-23556-08 eliminates field modifications and ensures proper spark-to-burner positioning.
• High-Temperature Durability: Engineered with premium ceramic insulation to prevent electrical leakage and withstand thermal expansion cycles.
• Enhanced System Reliability: Minimizes burner delays and reduces the risk of unburned gas accumulation during the startup sequence.

What causes a 62-23556-08 ignitor to fail?
Most failures result from carbon buildup (sooting) on the electrode or cracks in the ceramic insulator caused by thermal stress, leading to a weak or non-existent spark.

Is this ignitor compatible with hot surface ignition (HSI) systems?
No, this is a direct spark ignition electrode. It is designed specifically for DSI systems and cannot be used in applications requiring a glow-bar style HSI element.

Does the spark gap need adjustment upon installation?
While factory-set, technicians should always verify the spark gap against the manufacturer's service manual to ensure it meets the required threshold for the specific burner tray.

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.