How To Light A Pilot Light On A Furnace Lennox

Savager Indie vor

3 min read

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23-11-2024

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Meta Description: Learn how to safely light the pilot light on your Lennox furnace. This step-by-step guide with pictures covers locating the access panel, gas valve operation, and troubleshooting common problems. Get your heating system running smoothly again! Don't attempt this if you're uncomfortable with gas appliances; call a professional.

Locating the Access Panel & Safety Precautions

Before you even think about lighting the pilot light on your Lennox furnace, safety is paramount. Turn off the gas supply to the furnace. This is usually a valve located near the furnace itself. You should hear a distinct clicking sound indicating the gas has shut off. If you are uncomfortable working with gas appliances, call a qualified HVAC technician. This is crucial to prevent gas leaks and potential hazards.

Next, locate the access panel to your furnace's pilot light. This is typically located at the bottom of the unit. The exact location varies slightly depending on your Lennox model. Refer to your Lennox furnace manual for precise instructions if needed. The panel is usually secured with screws or clips; carefully remove it to access the pilot assembly.

(Insert image here: A clear photo showing the access panel location on a Lennox furnace. Image should be compressed for fast loading.) Alt text: Lennox furnace access panel location.

Step-by-Step Instructions for Lighting the Pilot Light

1. Locate the Pilot Light and Gas Control Knob: Once the access panel is removed, you’ll see the pilot light assembly. You'll also find a gas control knob, often a small, round knob near the pilot assembly.

(Insert image here: A close-up photo of the pilot light assembly and gas control knob. Image should be compressed for fast loading.) Alt text: Lennox furnace pilot light and gas control knob.

2. Turn the Gas Control Knob: Carefully turn the gas control knob to the "Pilot" position. This will allow a small amount of gas to flow to the pilot light. You may hear a hissing sound—this is normal.

3. Ignite the Pilot Light: Use a long lighter or match (at least 12 inches long to keep your hand at a safe distance). Carefully ignite the pilot light, holding the flame close to the pilot assembly's burner. You should see the pilot light ignite and stay lit.

(Insert image here: A photo demonstrating the safe use of a long lighter to light the pilot light. Image should be compressed for fast loading.) Alt text: Safely lighting a Lennox furnace pilot light with a long lighter.

4. Hold and Check the Flame: Hold the flame near the pilot for approximately 30 seconds to ensure the pilot light is firmly lit. A small, steady blue flame is what you're looking for. If the flame is yellow or sputtering, there might be a problem with the gas supply or the pilot assembly itself.

5. Turn the Gas Control Knob to the "On" Position: Once the pilot light is burning steadily, carefully turn the gas control knob to the "On" position. This will allow gas to flow to the main burner, starting the heating cycle.

6. Replace the Access Panel: Carefully replace the access panel, ensuring it’s securely fastened.

Troubleshooting Common Problems

Q: What if the pilot light won't stay lit?

A: This could be due to a few reasons: Low gas pressure, a clogged pilot orifice, or a faulty thermocouple. Check the gas supply to the furnace and ensure it's turned on fully. If the problem persists, contact a qualified HVAC technician. Attempting to fix these issues yourself can be dangerous.

Q: The pilot light is burning with a yellow flame instead of blue.

A: A yellow flame indicates incomplete combustion, potentially leading to carbon monoxide buildup. Immediately turn off the gas supply and contact a professional HVAC technician.

Q: My furnace still won't turn on after lighting the pilot light.

A: Check the thermostat settings, ensure the power supply to the furnace is working, and verify that the gas supply is fully turned on. If the problem continues, contact a qualified HVAC technician.

Remember, if you're not comfortable working with gas appliances, always contact a qualified HVAC professional. They have the expertise and tools to diagnose and repair any issues safely and effectively. Attempting to fix the furnace yourself could be dangerous. This guide provides general information and should not be considered a substitute for professional help.