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Rheem Tankless Igniter Coil RTG20235C – OEM Replacement

$13.68 on Amazon.com (as of October 19, 2026, 7:14 PM EST) View details ↗

Restore reliable ignition to your Rheem, Ruud, or Richmond tankless water heater with the GEAIN RTG20235C Igniter Coil, the perfect OEM-quality replacement for error code 11 failures, igniter malfunctions, or burner ignition issues. Engineered for 120V gas water heaters, this coil delivers consistent performance with durable construction, ensuring smoother operation and fewer disruptions to your hot water supply.

Designed for easy installation, the RTG20235C fits seamlessly into Rheem, Ruud, and Richmond tankless models, allowing DIY users with basic tools to swap out the faulty component in minimal time. High-quality materials enhance longevity, reducing the need for frequent replacements and keeping your system running efficiently. Whether you’re troubleshooting a persistent error or upgrading for better reliability, this replacement part is a straightforward solution to get your water heater back on track.

Voltage Rating120V
CompatibilityRheem, Ruud, Richmond tankless water heaters
MaterialHigh-quality, durable construction
FunctionIgnition coil replacement for error code 11 and burner ignition failures
Does this igniter coil work with all Rheem tankless models?
This GEAIN RTG20235C coil is designed specifically for Rheem, Ruud, and Richmond tankless water heaters, but verify your model number before purchase to ensure compatibility.
What should I do if my water heater still doesn’t ignite after replacing the coil?
If the issue persists, double-check the gas supply, pilot light (if applicable), and ensure the coil is securely seated. Consult your water heater’s manual or a professional if problems continue.
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