Understanding how to relight a furnace pilot light is crucial for maintaining older heating systems that use this feature. Even in modern furnaces with pilot relight systems, glow rods, or electronic ignitions, knowing how to safely manage a pilot light is essential. At PRO-formance Heating & Air in Palm Desert, CA, we specialize in servicing a broad spectrum of heating systems—from traditional hot water heaters and older furnace models with standing pilots to modern tankless units and the latest furnace systems featuring electronic ignition, we handle them all. This guide will walk you through how to relight furnace pilot light, ensuring your heating system functions safely and efficiently. With our expertise, you can count on us for reliable support, regardless of the age or model of your system.
How to Relight Pilot Light on Furnace: Why Do Pilot Lights Go Out?
A furnace pilot light can go out for several reasons. Understanding these causes helps prevent frequent relighting.
Common Causes of Pilot Light Failure: How to Relight Pilot Light on Furnace
- Drafts in the Home – A strong breeze or sudden gust can blow out the flame.
- Dirty Pilot Orifice – Debris and dust buildup can obstruct gas flow.
- Faulty Thermocouple – A damaged thermocouple shuts off the gas supply for safety.
- Gas Supply Issues – Low gas pressure or an interrupted supply can affect the pilot light.
- System Malfunctions – Internal furnace issues may cause pilot light failure.
How to Relight Pilot Light on Furnace Safely and Easily
Follow these simple steps recommended by PRO-formance Heating & Air to safely relight a pilot light and restore furnace function.
Step 1: Turn Off the Furnace
First, turn off your furnace. Locate the thermostat and switch the system to “Off.” This step is essential because it prevents gas buildup before relighting.
Step 2: Find the Pilot Light Assembly
Next, locate the pilot light assembly. It is usually near the burner and includes a gas valve with “Pilot,” “On,” and “Off” settings. This part is crucial for controlling the gas flow.
Step 3: Turn the Gas Valve to Off
Turn the gas valve to the “Off” position. Then, wait at least five minutes to let any lingering gas dissipate. This step is crucial for safety and reduces the risk of accidental ignition.
Step 4: Switch the Gas Valve to Pilot
After waiting, turn the gas valve to the “Pilot” position. This setting allows gas to flow to the pilot light, making it possible to reignite the flame safely.
Step 5: Hold the Reset Button and Ignite the Pilot
Press and hold the reset button. While holding it, use a long lighter or match to ignite the pilot flame. Keep holding the button for 30-60 seconds to allow the thermocouple to heat up properly.
Step 6: Release the Reset Button
After 30-60 seconds, release the reset button. The pilot light should stay lit. If it goes out, repeat the process carefully. However, if it fails multiple times, seek professional assistance from PRO-formance Heating & Air in Palm Desert, CA.
Step 7: Turn the Gas Valve to On
Once the pilot light remains steady, turn the gas valve to “On.” This restores normal furnace operation, ensuring your heating system functions correctly.
Troubleshooting Common Pilot Light Issues: How to Relight Pilot Light on Furnace
If relighting the pilot light fails, try these troubleshooting tips to resolve common issues.
What If the Pilot Light Won’t Stay Lit?
- Check the Thermocouple – A faulty thermocouple can prevent the pilot light from staying lit, interrupting the heating process.
- Inspect the Pilot Orifice – A clogged orifice restricts gas flow, making it difficult for the pilot light to burn steadily.
- Verify Gas Supply – Ensure your home’s gas supply is active and flowing correctly to the furnace.
Signs You Need Professional Help
- Frequent Pilot Light Failures – If the pilot light goes out repeatedly, the system needs expert diagnosis to identify the root cause.
- Burner Won’t Stay Lit – If the main burner won’t stay on, the furnace may have deeper issues requiring professional attention.
- Unusual Gas Smell – If you detect a gas odor, turn off the gas supply immediately and call PRO-formance Heating & Air for emergency service.
How to Prevent Pilot Light Problems: How to Relight Pilot Light on Furnace
Prevent pilot light issues with regular maintenance and simple preventative measures to ensure reliable heating.
Schedule Routine Furnace Maintenance
Regular furnace maintenance helps prevent pilot light problems. Scheduling an annual inspection with a technician from PRO-formance Heating & Air ensures your system runs efficiently.
Keep the Pilot Orifice Clean
Dirt and debris can clog the pilot orifice over time. Cleaning it annually improves gas flow and flame stability, preventing unnecessary outages.
Protect Your Furnace from Drafts
Eliminate drafts around your furnace by sealing gaps in doors and windows. This prevents sudden air movement from extinguishing the pilot light unexpectedly.
Monitor Your Thermocouple
A worn thermocouple affects pilot light function. If your pilot light frequently goes out, replacing the thermocouple may solve the issue before more significant problems arise.
How to Relight Pilot Light on Furnace: Why Trust PRO-formance Heating & Air?
Relighting a pilot light is manageable, but some situations require expert help. PRO-formance Heating & Air in Palm Desert, CA, provides professional furnace services to ensure your heating system functions safely and efficiently. Our experienced technicians can diagnose pilot light issues and provide reliable solutions.
Now that you know how to relight the pilot light on your furnace safely and easily, keeping your furnace in working condition is simpler. However, if you continue experiencing problems, trust PRO-formance Heating & Air to provide expert assistance and keep your home warm and safe. Contact PRO-formance today to schedule your service or for more help with your heating needs.
