How To Reset Gas Hot Water Heater

(Many of the links in this article redirect to a specific reviewed product. Your purchase of these products through affiliate links helps to generate commission for Storables.com, at no extra cost. Learn more)

Introduction

Having a gas hot water heater is convenient for providing hot water in your home. However, there may come a time when you need to reset it due to issues with temperature, pressure, or simply to perform regular maintenance. Resetting a gas hot water heater is a relatively straightforward process that can be done with a few simple steps.

In this article, we will guide you through the step-by-step process of resetting a gas hot water heater. By following these instructions, you’ll be able to safely reset your water heater and ensure continued hot water supply in your home.

Before we dive into the steps, it is important to note that gas hot water heaters can be dangerous if not handled properly. If you are uncertain or uncomfortable with performing any of the following tasks, it is recommended to contact a professional plumber or technician for assistance.

With that said, let’s get started with the first step of resetting your gas hot water heater!

Step 1: Turn off the Power Supply

The first step in resetting a gas hot water heater is to turn off the power supply. This is crucial for safety reasons, as working with an active power supply can be dangerous.

To turn off the power supply, locate the electrical breaker or switch that controls the water heater and flip it to the “off” position. This will cut off the electricity to the heater and ensure that there is no power running to it.

It is important to note that some gas hot water heaters may also have a separate power switch located near the unit. Make sure to switch off this power switch as well, if applicable.

Once the power supply is turned off, you can proceed to the next step of resetting your gas hot water heater.

Step 2: Shut off the Gas Supply

After turning off the power supply, the next step in resetting a gas hot water heater is to shut off the gas supply. This is necessary to prevent any gas leaks or accidents while working on the heater.

Start by locating the gas valve on the water heater. It is usually located near the bottom of the unit or on the gas line leading to the heater. Rotate the valve handle to the “off” position, perpendicular to the gas line.

It is essential to ensure that the gas supply is completely shut off before proceeding with any further steps. You can double-check by smelling for any gas odors around the heater. If you detect a strong gas smell, leave the area immediately and contact your gas company for assistance.

Once you have confirmed that the gas supply is turned off, you can move on to the next step of resetting your gas hot water heater.

Step 3: Drain the Water Heater

Draining the water heater is an important step in resetting a gas hot water heater. This process helps to remove any sediment or impurities that may have accumulated at the bottom of the tank over time.

Here’s how to drain the water heater:

1. Locate the drain valve at the bottom of the water heater. It is usually a spigot-like valve connected to a hose.
2. Place a bucket or a large container beneath the drain valve to collect the water.
3. Slowly open the drain valve by turning it counterclockwise. Be cautious as the water inside the tank may be hot.
4. Allow the water to drain fully from the tank. Depending on the size of the tank and the amount of sediment, this process may take some time.
5. Once the tank is empty, close the drain valve by turning it clockwise.

Draining the water heater not only helps in resetting it but also improves its efficiency and prolongs its lifespan. It is recommended to drain the water heater at least once a year or as per the manufacturer’s guidelines.

With the water heater drained, you are now ready to move on to the next step of resetting your gas hot water heater.

Before resetting your gas hot water heater, make sure to turn off the gas supply and allow the unit to cool down. Then, locate the reset button on the control panel and press it to reset the heater. If the issue persists, consider calling a professional for further assistance.

Step 4: Reset the Temperature and Pressure Relief Valve

The temperature and pressure relief (TPR) valve is an important safety feature of a gas hot water heater. It prevents excessive pressure and temperature buildup inside the tank, reducing the risk of explosions or damage to the unit.

If you suspect that the TPR valve is malfunctioning or needs to be reset, follow these steps:

1. Locate the TPR valve on the side or top of the water heater. It is typically a brass or copper valve with a lever or a small handle.
2. Place a bucket or a container beneath the valve to catch any water that may be released.
3. Slowly lift the lever or handle on the TPR valve. This will release some water and relieve the pressure inside the tank.
4. Allow the TPR valve to close by itself after lifting the lever. If it does not close fully, you may need to replace the valve.

Resetting the TPR valve can help resolve issues with excessive pressure or temperature. However, if you notice persistent problems or frequent TPR valve releases, it is advisable to consult a professional plumber for further inspection.

Once you have successfully reset the TPR valve, you can proceed to the final step of resetting your gas hot water heater.

Step 5: Refill and Restart the Water Heater

Now that you have completed the necessary steps to reset your gas hot water heater, it’s time to refill and restart the unit. Follow these steps to ensure a smooth and safe process:

1. Close the drain valve that you opened earlier to drain the water from the tank. Ensure it is tightly closed to prevent leaks.
2. Turn on the cold water supply valve to allow water to fill the tank. You can usually find this valve near the top of the water heater.
3. Open a hot water faucet in your home to help remove any air pockets from the water lines.
4. Wait for the tank to fill up completely. You may hear the sound of water flowing into the tank.
5. Once the tank is full, close the hot water faucet that you opened earlier.
6. Turn on the gas supply to the water heater by rotating the gas valve handle to the “on” position.
7. If your gas hot water heater has a pilot light, follow the manufacturer’s instructions to relight it. Ensure that the pilot flame ignites properly for the unit to operate.
8. Finally, turn on the power supply to the water heater by flipping the electrical breaker or switch to the “on” position.

Allow the water heater some time to heat up the water, which may vary depending on the size of the tank and the initial temperature of the incoming water. Once the water is hot, you can use your gas hot water heater as usual.

Remember, if you encounter any issues or have concerns about resetting or operating your gas hot water heater, it is best to seek professional assistance to ensure your safety and the proper functioning of the unit.

By following these steps, you can successfully reset your gas hot water heater and enjoy a reliable and efficient supply of hot water in your home.

Conclusion

Resetting a gas hot water heater may seem like a daunting task, but by following the step-by-step instructions outlined in this article, you can successfully reset your unit and ensure a continuous supply of hot water in your home.

Remember, safety should always be a top priority when working with gas appliances. If you feel uncertain or uncomfortable performing any of the steps, it is best to consult a professional plumber or technician for assistance.

Regular maintenance, including draining the tank and resetting the temperature and pressure relief valve, can help improve the efficiency and longevity of your gas hot water heater. It is recommended to follow the manufacturer’s guidelines for maintenance and schedule regular inspections to keep your water heater in optimal condition.

By taking the time to properly reset your gas hot water heater, you can address any issues and ensure the safe and efficient operation of the unit. Additionally, proper maintenance can prolong the lifespan of your water heater, saving you money in the long run.

We hope that this article has provided you with the knowledge and confidence to reset your gas hot water heater effectively. Remember, if you have any doubts or concerns, it is always better to seek professional help.

Thank you for reading, and we wish you success in resetting your gas hot water heater!