How to Relight Pilot Light on Gas Furnace
What is a Pilot Light and Why is it Important?
A pilot light is a small flame that is used to ignite the burner on a gas furnace. It is usually located near the furnace’s air filter and is responsible for heating the system before it blows air warmed by the burner through the ducts to heat the home. Without a functioning pilot light, the furnace will not work properly and may even fail to provide heat. That’s why it’s crucial to learn how to relight a pilot light when it goes out.
How to Relight a Pilot Light on Gas Furnace: A Step-by-Step Guide
Precautions and Preparation
Before attempting to relight the pilot light, make sure to:
• Turn off the gas supply: Switch off the main gas supply valve near the furnace to prevent any gas leaks or fires.
• Let the system cool down: Wait for the furnace to cool down before proceeding.
• Consult your owner’s manual: Review your furnace’s owner’s manual for specific instructions on how to relight the pilot light.
Relighting the Pilot Light: The Procedure
To relight the pilot light, follow these steps:
• Step 1: Access the Pilot Light
Find the pilot light control button, usually located on the side of the furnace. This button may have a screw or clip that needs to be removed or disengaged to access the pilot light.
• Step 2: Clear the Debris
Use a toothbrush or small brush to clear any debris, such as dust, lint, or pet hair, from the pilot light hole.
• Step 3: Remove Any Blockages
Check if the pilot light is clogged or blocked by removing any objects, such as hair clips, paper clips, or broken pieces, from the pilot light area.
• Step 4: Check the Pilot Light
Verify that the pilot light is clean and clear of blockages.
• Step 5: Relight the Pilot Light
Place the tip of the pilot light gas screwdriver into the pilot light hole and press down slightly while simultaneously pressing the pilot light button. Important: Do not force the pilot light to relight as it may damage the system.
• Step 6: Monitor and Adjust
Monitor the pilot light for a few minutes to ensure it is steady and stable. Adjust the pilot light by screwing it in or out slightly until it is perfectly lit.
Troubleshooting Common Issues
Error 1: Pilot Light Won’t Relight
• Check if the gas supply is turned on and if there are any blockages or debris in the pilot light area.
Error 2: Pilot Light Continues to Flicker
• Verify if the pilot light is installed at the correct angle and distance from the flame.
• Check for air leaks around the furnace.
Tips and Considerations
• Maintenance: Regular maintenance is essential to ensure the pilot light stays lit and the furnace works efficiently.
• Avoid Obstructing the Pilot Light: Avoid obstructing the pilot light area to ensure proper airflow and efficient ignition.
• Get Professional Help: If you are not comfortable relighting the pilot light or if it persists, contact a qualified HVAC technician for assistance.
Safety Precautions
When working with gas appliances, it is essential to exercise caution to prevent accidents:
• Always Turn Off the Gas Supply: When working with the pilot light, turn off the gas supply valve near the furnace to prevent gas leaks or fires.
• Be Careful Around Flammable Materials: Avoid having any flammable materials, such as towels or clothing, near the pilot light or furnace during relighting.
• Seek Professional Help: If you are not comfortable working with gas appliances, it is best to seek professional assistance from a qualified HVAC technician.
In conclusion, relighting the pilot light on a gas furnace is a relatively straightforward process if you follow the proper steps. Remember to turn off the gas supply, consult your owner’s manual, and take necessary precautions to avoid accidents. By following the steps outlined in this article, you should be able to successfully relight the pilot light and have your furnace functioning properly.
