Rheem-Ruud SP12143 Ignitor

The Rheem-Ruud SP12143 Ignitor is a high-performance Hot Surface Ignitor (HSI) engineered specifically for the Advantage Plus series gas appliances. This silicon carbide ignitor provides a reliable, rapid-heating source to ensure clean combustion and consistent ignition cycles in gas-fired water heaters and furnaces. Operating at 110V/120V AC, the SP12143 is a critical OEM replacement part that maintains the precise operational tolerances required for high-efficiency commercial and residential heating units. The assembly features a robust ceramic base, a 3 1/4-inch heating element, and 12-inch wire leads with female pin connectors for a secure electrical interface.

When swapping out a cracked or oxidized HSI ignitor, technicians should note that the Rheem SP12143 includes the necessary mounting gasket and wire nuts to ensure a proper seal and vibration resistance. Handling this carbide ignitor strictly by the ceramic base is vital to prevent skin oils from contaminating the element, which often leads to hotspots and premature failure. This HSI retrofit kit is a legacy-standard component for models manufactured prior to 2009, delivering the high-temperature performance needed to clear F09 fault codes and restore dependable burner sequencing.

Key Benefits:

• OEM Precision: Specifically designed for the Rheem-Ruud Advantage Plus series to ensure exact fitment and voltage compatibility.
• Rapid Ignition: High-strength silicon carbide construction reaches ignition temperature quickly for efficient gas combustion.
• Complete Kit: Includes a high-temperature gasket and connectors to simplify field installation and ensure a vacuum-tight seal.
• Durable Construction: Features UL-recognized wire leads and a reinforced ceramic housing to withstand high-cycle thermal stress.

Common Questions:

• What causes the F09 fault code on Advantage Plus units? An F09 error typically indicates an ignition failure, often caused by a cracked or high-resistance HSI ignitor like the SP12143.
• Is the SP12143 compatible with 80-gallon and 95-gallon units? Yes, this hot surface ignitor is the standard replacement for various HE80 and HE95 commercial gas water heaters.
• Can I touch the black element during installation? No. Oils from your hands will cause the material to fail during the first few heat cycles; always handle by the white ceramic base only.

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.