What To Know
- Unlike traditional gas furnaces that use a pilot light to ignite the gas, electronic ignition systems use spark plugs to create a flame.
- While holding down the igniter button, use a long-neck lighter or match to light the gas at the burner.
- If you are unable to light the furnace manually or encounter any other issues, it is recommended to contact a qualified HVAC technician.
If your gas furnace has an electronic ignition system, you may encounter situations when you need to manually light it. This blog post will provide a step-by-step guide on how to light a gas furnace with electronic ignition.
Understanding Electronic Ignition Systems
Unlike traditional gas furnaces that use a pilot light to ignite the gas, electronic ignition systems use spark plugs to create a flame. These systems are more efficient and reliable, but they can sometimes fail, requiring manual ignition.
Safety Precautions
- Turn off gas supply: Before starting any work, turn off the gas supply to the furnace.
- Clear the area: Remove any flammable materials from the vicinity of the furnace.
- Ventilate the area: Open windows and doors to provide ventilation.
- Wear protective gear: Wear gloves and safety glasses for protection.
Materials Required
- Flashlight
- Long-neck lighter or match
- Screwdriver or wrench (optional)
Step-by-Step Guide
1. Access the Furnace
Locate the furnace and remove the access panel to expose the burner assembly.
2. Inspect the Ignition System
Check the spark plugs and make sure they are clean and not damaged. If necessary, clean or replace them.
3. Turn on the Gas Supply
Slowly turn on the gas supply to the furnace. You should hear a slight hissing sound as the gas flows into the burner.
4. Locate the Igniter Button
Find the igniter button, which is usually located near the burner assembly. It may be labeled “Ignite” or “Pilot.”
5. Hold Down the Igniter Button
Press and hold down the igniter button for 30-60 seconds. You should hear a clicking sound as the spark plugs fire.
6. Ignite the Gas
While holding down the igniter button, use a long-neck lighter or match to light the gas at the burner.
7. Release the Igniter Button
Once the gas is lit, release the igniter button. The flame should remain burning.
8. Close the Access Panel
Replace the access panel to secure the furnace.
Troubleshooting Tips
- No ignition: Check the spark plugs, gas supply, and igniter button.
- Flame goes out: Ensure the burner is clean and free of obstructions.
- Pilot light won’t stay lit: Adjust the pilot flame height using the adjustment screw.
When to Call a Professional
If you are unable to light the furnace manually or encounter any other issues, it is recommended to contact a qualified HVAC technician.
Conclusion: Lighting Your Gas Furnace with Confidence
By following the steps outlined in this guide, you can safely and effectively light a gas furnace with electronic ignition. Remember to prioritize safety and consult a professional if you encounter any difficulties.
FAQ
Q1: What if I don’t hear a clicking sound when pressing the igniter button?
A1: The igniter or spark plugs may be faulty. Contact a professional for diagnosis and repair.
Q2: Why does my furnace keep turning off after I light it?
A2: The flame sensor may be dirty or malfunctioning. Clean the sensor or replace it if necessary.
Q3: Can I use a regular lighter to ignite the gas?
A3: No, it is not recommended to use a regular lighter as it can be dangerous. Use a long-neck lighter or match specifically designed for lighting appliances.
