Home » Blog » How to relight furnace pilot light?

How to relight furnace pilot light?

How to Relight a Furnace Pilot Light: A Step-by-Step Guide

What is a Furnace Pilot Light?

A furnace pilot light is a small flame that ignites the main burner of your furnace, which in turn heats your home. The pilot light is a crucial component of your furnace system, as it provides the initial spark to ignite the combustion process. If the pilot light goes out, your furnace will not function properly, and your home may not heat efficiently.

Bulk Ammo for Sale at Lucky Gunner

Why is it Important to Relight the Pilot Light?

Relighting the pilot light is crucial for several reasons:

Safety: A pilot light that is not functioning can lead to carbon monoxide poisoning, as the furnace may not be able to burn fuel properly.
Efficiency: A faulty pilot light can reduce the efficiency of your furnace, leading to higher energy bills and decreased heating performance.
Comfort: A non-functioning pilot light can result in an uncomfortable living space, as your home may not be heated properly.

How to Relight a Furnace Pilot Light?

Relighting a furnace pilot light is a relatively simple process that can be completed with a few basic tools. Here’s a step-by-step guide to help you relight your furnace pilot light:

Step 1: Turn Off the Power

Before attempting to relight the pilot light, make sure to turn off the power to the furnace at the circuit breaker or fuse box. This will ensure your safety while working on the pilot light.

Step 2: Locate the Pilot Light

Find the pilot light assembly, which is usually located near the burner area of your furnace. The pilot light assembly may be covered with a cover or access panel, which needs to be removed to access the pilot light.

Step 3: Light the Pilot Light

Using a long matches or a pilot light igniter, hold the flame to the pilot light orifice until the pilot light ignites. Make sure to hold the flame steady for 30 seconds to ensure the pilot light stays lit.

Step 4: Adjust the Pilot Light

Once the pilot light is lit, adjust the pilot light orifice to ensure the flame is steady and consistent. You may need to adjust the orifice by turning a small screw or adjusting a sliding mechanism.

Step 5: Turn On the Power

Once the pilot light is adjusted and steady, turn on the power to the furnace at the circuit breaker or fuse box.

Step 6: Test the Pilot Light

Turn on the furnace and check to see if the pilot light is functioning properly. If the pilot light is not functioning, repeat the process of lighting the pilot light until it stays lit.

Troubleshooting Common Issues

If you encounter issues while relighting the pilot light, here are some common problems and solutions:

Issue 1: Pilot Light Won’t Light

  • Solution: Check the pilot light orifice for blockages, and clean it out with a small brush or cloth.
  • Solution: Check the gas supply line for leaks or blockages.

Issue 2: Pilot Light Keeps Going Out

  • Solution: Check the pilot light orifice for proper alignment, and adjust it as necessary.
  • Solution: Check the thermocouple for proper function, as a faulty thermocouple can cause the pilot light to go out.

Preventing Future Issues

To prevent future issues with your furnace pilot light, follow these tips:

Regular Maintenance: Have your furnace serviced regularly by a qualified technician to ensure the pilot light and other components are functioning properly.
Check and Clean: Regularly check and clean the pilot light orifice and thermocouple to ensure proper function.
Replace the Thermocouple: Replace the thermocouple if it becomes faulty, as it can cause the pilot light to go out.

Table: Common Causes of Pilot Light Issues

CauseSolution
Blockages in pilot light orificeClean out the orifice with a small brush or cloth
Leaks in gas supply lineCheck and repair the gas supply line
Faulty thermocoupleReplace the thermocouple

By following these steps and tips, you should be able to relight your furnace pilot light and prevent future issues. Remember to always follow safety precautions when working with gas appliances, and consider hiring a qualified technician if you are not comfortable with the process.

Enhance Your Knowledge with Curated Videos on Guns and Accessories


Leave a Comment