How to Relight a Pilot Light on a Water Heater: A Step-by-Step Guide
Relighting a pilot light on a water heater can be a daunting task, but it’s a crucial step in ensuring your water heater functions properly. A pilot light is a small flame that ignites the main burner, which heats the water in your tank. If the pilot light goes out, your water heater won’t work, and you’ll be left without hot water. In this article, we’ll guide you through the process of relighting a pilot light on a water heater.
Why is the Pilot Light Important?
Before we dive into the relighting process, it’s essential to understand the importance of the pilot light. A pilot light is responsible for:
- Igniting the main burner, which heats the water in your tank
- Regulating the flow of gas to the main burner
- Providing a continuous flame to maintain the desired temperature
If the pilot light is not functioning properly, your water heater may not produce hot water, or it may not produce enough hot water to meet your needs.
Common Reasons for a Pilot Light to Go Out
Before attempting to relight the pilot light, it’s essential to identify the underlying cause. Common reasons for a pilot light to go out include:
- Low gas pressure
- Faulty thermocouple
- Clogged or dirty pilot light orifice
- Incorrect pilot light settings
- Age-related wear and tear
Step-by-Step Guide to Relighting a Pilot Light on a Water Heater
Relighting a pilot light on a water heater requires caution and attention to detail. Follow these steps to ensure a successful relight:
- Turn off the Gas Supply
- Locate the shut-off valve and turn it clockwise to shut off the gas supply to the water heater.
- Make sure the valve is fully closed before proceeding.
- Wait for 10 Minutes
- Allow the gas supply to shut off for at least 10 minutes to ensure any gas in the system is vented.
- Locate the Pilot Light Assembly
- Identify the pilot light assembly, which is usually located at the bottom of the water heater.
- Take note of the orientation of the pilot light assembly, as it may need to be reassembled in the same way after relighting.
- Remove the Pilot Light Cap
- Use a screwdriver or an Allen wrench to remove the pilot light cap.
- Be careful not to touch any of the internal components.
- Adjust the Pilot Light Orifice
- Use a needle or a small screwdriver to adjust the pilot light orifice.
- Make sure it’s not clogged or dirty.
- Light the Pilot Light
- Use a long match or a lighter to light the pilot light.
- Hold the flame to the pilot light orifice for about 30 seconds to ensure it ignites properly.
- Check the Pilot Light
- Observe the pilot light to ensure it’s burning steadily and not producing any unusual sounds or smells.
- Reassemble the Pilot Light Assembly
- Reattach the pilot light cap and make sure it’s securely tightened.
- Reassemble the pilot light assembly in the same way it was disassembled.
- Turn On the Gas Supply
- Turn the shut-off valve counterclockwise to restore the gas supply to the water heater.
- Make sure the valve is fully open before proceeding.
- Test the Water Heater
- Turn on the cold water supply and check if the water heater is producing hot water.
Tips and Precautions
- Always follow the manufacturer’s instructions for relighting the pilot light on your specific water heater model.
- Make sure you’re wearing protective gloves and eyewear when working with gas appliances.
- Never try to relight the pilot light with a flame from a lit cigarette or matches, as this can be dangerous.
- If you’re not comfortable relighting the pilot light yourself, consider hiring a professional plumber.
Troubleshooting Common Issues
- Pilot Light Won’t Stay Lit
- Check the thermocouple for damage or corrosion.
- Clean or replace the thermocouple as needed.
- Pilot Light is Flickering
- Check the pilot light orifice for clogs or debris.
- Clean or replace the orifice as needed.
- Pilot Light Won’t Light
- Check the gas supply valve to ensure it’s fully open.
- Check the pilot light assembly for damage or corrosion.
Conclusion
Relighting a pilot light on a water heater can be a challenging task, but with the right steps and precautions, you can ensure your water heater functions properly. Remember to identify the underlying cause of the pilot light going out, follow the manufacturer’s instructions, and take necessary precautions to avoid accidents. By following the step-by-step guide and troubleshooting common issues, you’ll be able to relight your pilot light and enjoy a continuous supply of hot water.
