To restart a Rheem water heater, first, locate the reset button near the thermostat and press it firmly. If the heater doesn’t ignite, check the gas supply, pilot light, and ensure the thermostat is set correctly., Error code ‘Ignition Lockout’ on your Rheem Water Heater will pop up if you fail to establish burner ignition after three successive attempts. Several reasons like corroded burner ground wire, unplugged connectors, defective flame probe, and faulty gas valve cause the ignition lockout issue., Replacing the igniter on your Rheem water heater is a straightforward task that can restore hot water to your home. By following the steps outlined in this guide and addressing other potential igniter issues, you can ensure your water heater operates efficiently and reliably., Experiencing a failed ignition lockout with your Rheem water heater can be frustrating. This common issue can leave you without hot water and disrupt your daily routine. The problem usually stems from a malfunction in the gas supply or ignition system, which prevents the heater from starting., If the spark electrode won’t produce a spark, the electrode itself is likely defective and needs replacing. We’ll walk you through how to troubleshoot the issue of your water heater igniter not sparking, and educate you on possible solutions. We’ve also outlined some other common water heater pilot light problems and how to fix them., In this step-by-step guide, we’ll show you how to reignite a Rheem Classic Series water heater, an easy fix that can save you time and money! If your water heater’s pilot light is out,.