How to Light the Pilot Light on a Gas Furnace
If you’re reading this article, chances are you’re experiencing a problem with your gas furnace not producing heat. In most cases, the culprit is a blown pilot light. Don’t worry; lighting the pilot light on a gas furnace is a relatively simple process that you can do yourself. In this article, we’ll guide you through the step-by-step process of how to light the pilot light on a gas furnace.
Before You Start
Before attempting to light the pilot light, make sure you’ve checked the following:
- Ensure the furnace is turned off at the thermostat and at the furnace itself.
- Check the gas supply line for any leaks or blockages.
- Verify that the furnace’s circuit breaker or fuse hasn’t tripped or blown.
Materials Needed
To light the pilot light, you’ll need the following materials:
- A pilot light screwdriver (usually provided with the furnace)
- A new pilot light orifice (if the old one is clogged or damaged)
- A gas leak detector (optional but highly recommended)
- A pair of safety glasses and gloves (recommended)
Step-by-Step Instructions
Here’s a step-by-step guide on how to light the pilot light on a gas furnace:
Contents
Step 1: Remove the Access Panel
Locate the access panel on the front of the furnace. Remove the screws and gently pull the panel off. This will give you access to the pilot light assembly.
Important: Make sure to turn off the power to the furnace at the circuit breaker or fuse box before attempting to access the pilot light.
Step 2: Locate the Pilot Light Assembly
Look for the pilot light assembly, which is usually located near the bottom of the furnace. You’ll see a small gas valve and a pilot light orifice.
Note: If you’re not familiar with the layout of your furnace, consult your user manual or contact a professional.
Step 3: Remove the Old Pilot Light Orifice (If Necessary)
If the old pilot light orifice is clogged or damaged, you’ll need to remove it. Use a wrench to loosen the orifice, then pull it out.
Important: Be careful not to damage the orifice or any surrounding components.
Step 4: Light the Pilot Light
Use the pilot light screwdriver to push the pilot light button and light the pilot flame. Hold the button for 1-2 seconds to ensure the flame is stable.
Important: Make sure the pilot light is burning steadily before releasing the button.
Step 5: Adjust the Pilot Light Orifice
Once the pilot light is lit, adjust the orifice by turning the screw counterclockwise to ensure the flame is centered and stable.
Note: Refer to your user manual for specific instructions on adjusting the orifice.
Step 6: Replace the Access Panel
Put the access panel back in place and reattach the screws.
Congratulations! You’ve successfully lit the pilot light on your gas furnace.
Troubleshooting Tips
If you encounter any issues while attempting to light the pilot light, refer to the troubleshooting tips below:
- Pilot light won’t stay lit: Check the orifice for blockages or damage, and adjust the orifice as needed.
- Pilot light is not lit: Check the gas supply line for leaks or blockages, and ensure the furnace is turned on.
- Pilot light is burning unevenly: Adjust the orifice as needed to ensure the flame is centered and stable.
Safety Precautions
When working with gas appliances, it’s essential to prioritize safety. Here are some important safety precautions to keep in mind:
- Always turn off the power to the furnace at the circuit breaker or fuse box before attempting to access the pilot light.
- Use a gas leak detector to ensure the furnace is gas-tight.
- Wear safety glasses and gloves to protect yourself from any potential hazards.
- Keep the area well-ventilated to prevent carbon monoxide buildup.
Conclusion
Lighting the pilot light on a gas furnace is a relatively simple process that requires some basic knowledge and caution. By following the step-by-step instructions outlined in this article, you should be able to light the pilot light and get your furnace up and running again. Remember to prioritize safety and troubleshoot any issues that may arise. If you’re not comfortable attempting to light the pilot light yourself, it’s always recommended to consult a professional HVAC technician.
