Instructions on how to light a pilot light on a gas water heater from Kenmore, Rheem, Bradford White, AO Smith, and other manufacturers.
Tips on lighting a pilot light when using the Honeywell, Rodgers-White, and Robertshaw gas control valves.
Every gas water heater has the lighting instructions found on the label attached to the heater. If such instructions are missing and you have to replace the pilot assembly or fix any other problem that requires re-lighting, follow the instruction found here.
I will cover different types of gas control valves that are using a piezo-electric spark ignition system. The pilot flame is ignited by the electric spark generated when the igniter button is depressed. You can see the pilot flame through the sight glass window.
Once the pilot light is lit, it remains ON. The gas is also available to the main gas burner, and as long as there is a call from the thermostat, the pilot flame will ignite the main burner. If you require more info about problems and troubleshooting the pilot light, use this article.
Notes: If you want to learn how to light a pilot light properly, always follow the manufacturer's directions. One of these instructions says to fill the water heater completely, purge the air from the gas line, and never light by hand.
Use your hand to push or turn the gas control knob. Never use tools. If the knob is blocked and does not want to operate, stop, and call a technician - do not attempt to repair.
As found on Kenmore Hydrosense, the Honeywell gas control valve has the control knob/thermostat, which allows you to choose one of the three positions: ON, OFF and Pilot, and adjust the temperature of hot water. Use the following step-by-step guide to light the pilot light on a Honeywell gas valve:
The following steps show how to light the pilot light on Robertshaw and Rodgers-White gas valves, which are similar to the above Honeywell gas valve:
As seen from the above instructions, lighting a pilot light on a gas water heater is not hard, but be careful when dealing with gas - it might be dangerous. That is why you should always consult the instructions on lighting the pilot light properly and safely. Or, contact your local water heater expert.