Easy Steps to Relight Your Water Heater Pilot Light

A water heater pilot light is a small flame that ignites the gas used to heat your water. If the pilot light goes out, your water heater won’t function properly, leaving you without hot water. Understanding how to handle this common issue can save you time and avoid unnecessary service calls. This guide will walk you through the steps to relight your water heater pilot light, discuss common reasons for it going out, and explain when to call a professional plumber.

Several factors can cause your water heater pilot light to go out:

• Drafts: Strong drafts from open windows, vents, or fans can blow out the pilot light.
• Gas Supply Issues: Interruption in the gas supply or a malfunctioning gas valve can affect the pilot light.
• Thermocouple Problems: A faulty thermocouple may not keep the gas valve open.
• Clogged Pilot Tube: Debris or dirt in the pilot tube can block the gas flow.
• Burner Problems: A dirty or malfunctioning burner may not ignite properly.

Identifying these causes can help you troubleshoot the problem more effectively.

Before attempting to relight your water heater pilot light, follow these safety precautions:

• Turn Off the Gas Supply: Locate the gas control valve and turn it to the "off" position. Wait for at least 5 minutes to ensure any residual gas has dissipated.
• Check for Gas Leaks: Ensure there are no gas leaks around the water heater. If you smell gas, do not proceed and call a professional immediately.
• Ventilate the Area: Open windows and doors to ensure proper ventilation.
• Read the Manufacturer’s Instructions: Different models may have specific instructions. Always refer to the user manual for guidance.

Relighting a pilot light involves a few simple steps:

• Prepare the Area: Ensure the area around the water heater is clear and well-ventilated.
• Set the Control Knob: Turn the gas control knob to the “pilot” position. Press down on the knob to open the gas valve.
• Light the Pilot: Use a long match or lighter to ignite the pilot light. Hold the match or lighter near the pilot while continuing to press down on the control knob.
• Hold the Knob: Keep the knob pressed down for about 30 seconds to allow the thermocouple to heat up and keep the gas valve open.
• Check the Flame: Ensure the pilot light stays lit after releasing the knob. If it goes out, repeat the process.

• Keep the Area Dry: Moisture can interfere with the ignition process. Ensure the area around the pilot light is dry.
• Use the Right Tools: A long-reach lighter or match is essential to safely light the pilot without getting too close.
• Adjust the Flame: If the pilot flame is too small or too large, adjust the flame by turning the pilot adjustment screw (refer to your manual for details).

If your pilot light keeps going out, try these troubleshooting tips:

• Check the Thermocouple: Ensure it’s properly aligned and functioning. A faulty thermocouple may need replacing.
• Clean the Pilot Tube: Remove any debris or dirt from the pilot tube.
• Inspect the Burner: Make sure the burner is clean and free from obstruction.
• Adjust the Flame: Ensure the pilot flame is strong enough to reach the thermocouple.

If you’ve tried the above steps and your pilot light still won’t stay lit, it’s time to call a professional. A licensed plumber or HVAC technician can diagnose and fix more complex issues, such as:

• Gas Supply Problems: Issues with the gas supply or pressure may require professional attention.
• Faulty Thermocouple: Replacing a thermocouple might be necessary if it’s not functioning properly.
• Burner Problems: A malfunctioning burner or other internal components may need repair.

To keep your pilot light functioning properly, follow these maintenance tips:

• Regular Inspections: Have your water heater inspected annually by a professional to ensure it’s working efficiently.
• Keep the Area Clean: Ensure the area around your water heater is free from dust and debris that could cause issues.
• Monitor for Drafts: Check for and address any drafts near the water heater that could blow out the pilot light.

Understanding different types of water heaters can help you choose the best one for your needs:

• Tank Water Heaters: Store a large volume of hot water and are commonly found in homes. They may need regular maintenance, including checking the pilot light.
• Tankless Water Heaters: Provide hot water on demand without storing it, which can be more energy-efficient but may have different maintenance needs.
• Solar Water Heaters: Use solar energy to heat water, reducing energy costs. They require regular checks to ensure all components, including the pilot light, are functioning properly.

When deciding between DIY and professional repair, consider:

• DIY Costs: Relighting the pilot light yourself involves minimal cost, mainly for any tools or supplies.
• Professional Costs: Hiring a professional may cost more but can ensure that any underlying issues are addressed, potentially saving you money on future repairs.

How do I get my pilot light back on my water heater? 

Follow the manufacturer’s instructions to relight the pilot light. This usually involves setting the control knob to "pilot," pressing it down while lighting the flame, and holding it for 30 seconds.

What causes a water heater pilot light to go out? 

Common causes include drafts, gas supply issues, faulty thermocouples, and clogged pilot tubes.

Can I relight the pilot light by myself on the water heater? 

Yes, you can relight the pilot light yourself by following the proper steps. Ensure you follow safety precautions and consult your water heater’s manual.

How do I know if my pilot light is out on my gas water heater? 

You can tell if the pilot light is out if your water heater is not producing hot water and you see no flame through the viewing window. Check the pilot light to confirm.

What to do if the pilot light on the water heater won’t stay lit?

If the pilot light won’t stay lit, it could be due to issues like a faulty thermocouple or clogged pilot tube. Try cleaning the pilot tube and adjusting the thermocouple. If the problem persists, contact a professional.

Keeping your water heater’s pilot light in good condition ensures you have a reliable supply of hot water. By following the easy steps outlined in this guide, you can effectively handle common pilot light issues. If you encounter persistent problems or need professional assistance, don't hesitate to contact My Plumbing Heroes. Our experts are here to help with all your plumbing needs.

For more detailed guidance and support, visit our website or reach out to us for personalized service. We’re here to ensure your water heater runs smoothly and efficiently.

Check out these links for more resources about this topic:
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