Why Does Pilot Light Go Out on Water Heater?
A pilot light is a small flame that ignites the main burner in a water heater, providing heat to warm up the water. However, it’s not uncommon for the pilot light to go out on a water heater, leaving you without hot water. In this article, we’ll explore the reasons why the pilot light might go out on your water heater and what you can do to prevent it from happening.
Common Reasons for Pilot Light Failure
Before we dive into the reasons why the pilot light might go out, it’s essential to understand the common causes of pilot light failure. Here are some of the most common reasons:
• Dirty or Clogged Pilot Light Orifice: The pilot light orifice is the small hole where the pilot flame comes out. If it’s clogged with debris or sediment, it can prevent the pilot light from staying lit.
• Faulty Thermocouple: The thermocouple is a sensor that detects the pilot flame and sends a signal to the gas valve to keep the gas flowing. If the thermocouple is faulty, it may not detect the pilot flame, causing the gas valve to shut off.
• Incorrect Pilot Light Adjustments: If the pilot light is not adjusted correctly, it may not stay lit. This can be due to incorrect placement of the pilot light, or the pilot light being too far away from the thermocouple.
• Leaks in the Gas Line: A leak in the gas line can cause the pilot light to go out. If there’s a leak, the gas may not be flowing properly, making it difficult for the pilot light to stay lit.
• Faulty Gas Valve: The gas valve is responsible for controlling the flow of gas to the pilot light. If it’s faulty, it may not open or close properly, causing the pilot light to go out.
How to Troubleshoot Pilot Light Failure
Before you start calling a professional plumber, you can try troubleshooting the issue yourself. Here are some steps to follow:
- Check the Pilot Light Orifice: Use a toothbrush or a small brush to clean out any debris or sediment from the pilot light orifice. Make sure to wear gloves and safety glasses to protect yourself from any sharp edges or debris.
- Check the Thermocouple: If you suspect the thermocouple is faulty, you can try cleaning it with a soft cloth or replacing it if necessary. Make sure to follow the manufacturer’s instructions for replacing the thermocouple.
- Adjust the Pilot Light: If the pilot light is not adjusted correctly, try adjusting it to the recommended distance from the thermocouple. Make sure to follow the manufacturer’s instructions for adjusting the pilot light.
- Check for Leaks: Turn off the gas supply and check the gas line for any leaks. You can use a gas leak detector or a soap solution to detect any leaks.
- Check the Gas Valve: If you suspect the gas valve is faulty, you may need to replace it. Make sure to follow the manufacturer’s instructions for replacing the gas valve.
Prevention is the Best Medicine
While troubleshooting the issue can be helpful, prevention is always the best medicine. Here are some tips to help prevent pilot light failure:
• Regular Maintenance: Regularly check and maintain your water heater to ensure it’s functioning properly. This includes cleaning the pilot light orifice and thermocouple, and checking for any leaks in the gas line.
• Use a Water Heater Cover: A water heater cover can help protect the pilot light from debris and sediment that can clog the orifice.
• Install a Pilot Light Igniter: A pilot light igniter can help prevent the pilot light from going out by providing a backup flame in case the main flame goes out.
Conclusion
In conclusion, the pilot light going out on a water heater is a common issue that can be caused by a variety of factors. By understanding the common causes of pilot light failure and following the troubleshooting steps outlined in this article, you can help prevent the issue from happening in the first place. Remember to always follow safety precautions when working with gas appliances, and if you’re unsure about any aspect of the process, it’s always best to consult a professional plumber.
