How to Check Furnace Pilot Light
Furnace pilot lights are essential for the proper functioning of your heating system. They provide the initial spark that ignites the gas flame, which then heats the air and distributes it throughout your home. However, over time, the pilot light may become extinguished or flicker, indicating a potential problem. In this article, we will guide you through the process of how to check your furnace pilot light and what to do if it’s not working correctly.
Locating the Pilot Light
The first step in checking your furnace pilot light is to locate it. Typically, the pilot light is located on the front of your furnace, near the burners. It may be visible or enclosed in a glass or metal shield. Once you’ve found the pilot light, proceed to the next step.
Shutting Off the Gas Supply
Before you attempt to relight the pilot light, it’s crucial to shut off the gas supply to the furnace. This ensures your safety and prevents any potential gas leaks. Locate the gas shut-off valve, which is usually a round dial or lever located on the gas line leading to the furnace. Turn it clockwise to close the valve.
Checking the Pilot Light
With the gas supply shut off, examine the pilot light. If it’s visible, look for any signs of flame. If the flame is out, it could be due to a variety of reasons, such as a dirty flame sensor, low gas pressure, or a faulty thermocouple. If the flame is flickering, it may indicate a problem with the air flow or a clogged vent.
Relighting the Pilot Light
If the pilot light is out, follow these steps to relight it:
1. Open the gas shut-off valve to allow gas to flow to the pilot light.
2. Follow the manufacturer’s instructions to ignite the pilot light. This may involve using a spark lighter or an electric igniter.
3. Once the flame is lit, keep the control knob in the “on” position for a few minutes to allow the flame to stabilize.
4. After the flame has stabilized, turn the control knob to the “off” position and then back to “on” to lock the pilot light in place.
Testing the Pilot Light
After relighting the pilot light, it’s essential to test it to ensure it’s working correctly. Do this by:
1. Checking for a steady blue flame. A yellow or orange flame may indicate a problem with the gas mixture.
2. Ensuring the flame is not flickering. If it is, turn off the gas supply and inspect the vent and air flow.
3. Listening for a click or buzzing sound when you turn the control knob to the “on” position. This indicates that the thermocouple is working correctly.
Seek Professional Help if Necessary
If you’re unable to relight the pilot light or if the flame continues to flicker or go out, it’s best to seek professional help. A qualified technician can diagnose and resolve the issue safely and efficiently.
By following these steps, you can effectively check your furnace pilot light and address any issues that may arise. Remember, maintaining your furnace is crucial for ensuring a comfortable and safe living environment during the colder months.
