Are you facing the inconvenience of cold water in winter? Nothing is as disappointing as a freezing shower or washing dishes with cool water. It’s a scenario that no homeowner wants to face, yet it’s a reality when your gas water heater’s pilot light calls it quits.

Don’t worry! This guide will show you how to light the pilot light in your gas water heater. This tiny but essential flame keeps your home warm and gives you hot water. We’ll explain each step clearly to ensure you do it safely and comfortably.

Relight the Pilot Light of a Gas Tankless Heater

1. Turn Off the Gas

It is crucial to locate the gas valve on your water heater and rotate it to the “off” position for safety reasons. Before attempting to relight the pilot light, It’s important to ensure that the gas going to the water heater is turned off.

Usually, you’ll find a lever or knob that controls the gas near the bottom of the water heater. When you turn it off, you stop the gas from flowing to the appliance. This keeps gas from leaking while trying to relight the pilot light.

2. Access the Pilot Light

To reach the pilot light, open the access panel on your water heater. This panel serves as a cover, protecting the inner components, including the pilot light. In most cases, you’ll need a screwdriver to remove the panel screws. This step is essential as it enables safe access to the pilot light for relighting.

3. Locate the Pilot Light

Search for a small pipe with a metal or plastic cover; this is where you will find the pilot light. The pilot light is a small flame situated at the end of a tube known as a pilot tube, typically concealed behind a cover made of either metal or plastic. Finding the pilot light is the next thing you must do because you have to get to it to light it again.

4. Use a Lighter or Match

Use a long lighter or match to make the pilot light go on again. Put it near the pilot burner while pressing the reset button at the same time. You’ll hear a click when the gas starts burning. This step needs an outside flame source, like a long lighter or match, to relight the pilot light.

Hold the flame close to the pilot burner at the end of the pilot tube while pressing the reset button. The click noise tells you that the pilot light is lit up again.

5. Safety First

Safety should always be the top priority when handling gas appliances like water heaters. The “Safety First” step emphasizes the critical actions you must take if you detect a gas smell when attempting.

1. Stop Immediately

The first and most important thing to do is to stop right away. If you ever smell gas while trying to light the pilot, don’t continue. Stopping is necessary to avoid accidents or problems due to gas leaks.

2. Turn Off the Gas

 After stopping, the next step is to locate the gas valve on your water heater and promptly turn it to the “off” position. This action is vital because it shuts off the gas supply to the water heater, cutting off the source of the gas leak. This is the primary way to stop more gas from entering your home.

3. Ventilate the Area

Once you’ve turned off the gas, you should let fresh air in by opening doors and windows. There are two good reasons for this. First, it helps get rid of any leftover gas fumes, which makes it less likely for there to be a big explosion or fire.

Second, it brings in fresh air, which is important for your safety and health because breathing in gas fumes can make you sick.


We’ve walked you through the key procedures for safely relighting the pilot light on your gas tankless water heater. No one wants to endure cold showers or wash dishes with frigid water, and your gas water heater’s pilot light is the key to keeping your home warm and providing hot water. By following these step-by-step instructions, you can ensure your safety while confidently rekindling that crucial flame.

Remember, safety always comes first when dealing with gas appliances. If you ever detect the gas smell during this process, immediately stop what you’re doing. Turn off the gas supply to your water heater, and allow fresh air to flow into the area by opening doors and windows. These precautions are vital to prevent accidents and protect your well-being.

With this guide, you can face the challenge of relighting your water heater’s pilot light with confidence and peace of mind. Enjoy the warmth and comfort it brings to your home, especially during those chilly winter days.

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