How to Light a Pilot Light on a Gas Furnace
A gas furnace is a crucial component of a home’s heating system, providing warmth and comfort during the cold winter months. However, when the pilot light goes out, the furnace will not function, leaving you without heat. In this article, we will guide you through the process of lighting a pilot light on a gas furnace.
Why is the Pilot Light Important?
The pilot light is a small flame that ignites the main burner, which then heats the air and distributes it throughout the home. The pilot light is responsible for:
- Igniting the main burner
- Maintaining a safe and controlled combustion process
- Providing a backup heat source in case of a power outage
How to Light a Pilot Light on a Gas Furnace
Before attempting to light the pilot light, make sure you have:
- A gas furnace that is properly installed and maintained
- A reliable gas supply
- A working thermostat
Step 1: Turn Off the Gas Supply
Important: Before attempting to light the pilot light, turn off the gas supply to the furnace. This can usually be done by locating the shut-off valve and turning it clockwise. This will prevent any accidental gas leaks or explosions.
Step 2: Remove the Pilot Light Cover
Locate the pilot light cover, usually found on the side or top of the furnace. Remove the cover by unscrewing it or sliding it off. Be careful not to touch any of the internal components.
Step 3: Light the Pilot Light
Use a long match or lighter to light the pilot light. Hold the flame to the pilot light orifice (the small hole where the flame will emerge) for about 5-10 seconds. You should see a small flame appear.
Step 4: Adjust the Pilot Light
Once the pilot light is lit, adjust it to the correct height by turning the pilot light adjustment screw clockwise or counterclockwise. The pilot light should be about 1/4 inch above the pilot light orifice.
Step 5: Turn On the Gas Supply
Important: Once the pilot light is adjusted, turn on the gas supply to the furnace by turning the shut-off valve counterclockwise. You should hear the gas flowing into the furnace.
Step 6: Check the Pilot Light
Check the pilot light to ensure it is burning steadily and not flickering. If it is not burning properly, adjust the pilot light adjustment screw as needed.
Troubleshooting Common Issues
- Pilot Light Won’t Light: Check the gas supply, pilot light orifice, and pilot light adjustment screw for any blockages or obstructions.
- Pilot Light Flickers: Check the pilot light adjustment screw and adjust it as needed.
- Pilot Light Won’t Stay Lit: Check the gas supply and ensure it is turned on. Also, check the pilot light orifice for any blockages or obstructions.
Safety Precautions
- Always turn off the gas supply before attempting to light the pilot light.
- Never use a flame to light the pilot light if you are unsure of the gas supply.
- Keep children and pets away from the furnace and pilot light.
- Never attempt to light the pilot light if you are not comfortable doing so.
Conclusion
Lighting a pilot light on a gas furnace is a relatively simple process, but it requires attention to detail and caution. By following the steps outlined in this article, you should be able to successfully light the pilot light and get your furnace up and running. Remember to always prioritize safety and follow the manufacturer’s instructions for your specific furnace model.
Table: Pilot Light Maintenance Schedule
| Task | Frequency |
|---|---|
| Clean the pilot light orifice | Monthly |
| Check the pilot light adjustment screw | Quarterly |
| Inspect the gas supply | Annually |
| Replace the pilot light | Every 5-7 years |
Additional Tips
- Always refer to your furnace’s user manual for specific instructions on lighting the pilot light.
- Consider hiring a professional if you are not comfortable lighting the pilot light yourself.
- Keep a record of your maintenance schedule to ensure your furnace is properly maintained.
By following these steps and tips, you should be able to successfully light the pilot light on your gas furnace and keep your home warm and cozy throughout the winter months.
