Water heater on the fritz? uncover the hidden cause of its extinguished flame

Water heaters are an essential part of our homes, providing us with hot water for showers, baths, and dishes. But when the flame goes out, it can be a major inconvenience. In this blog post, we’ll explore the common reasons why water heater flames go out and provide step-by-step instructions on how to troubleshoot and fix the problem.

Common Causes of Water Heater Flame Going Out

1. Lack of Gas or Propane: If your water heater uses gas or propane, the flame may go out if there is no fuel supply. Check the gas line or propane tank to ensure it is connected and has sufficient fuel.

2. Clogged Burner: Over time, dust, lint, or other debris can accumulate on the burner, blocking the gas flow and causing the flame to extinguish.

3. Faulty Gas Valve: The gas valve controls the flow of gas to the burner. If the valve is malfunctioning, it may not open properly, leading to a lack of gas and a flame outage.

4. Faulty Thermocouple: The thermocouple is a safety device that senses the presence of a flame. If the thermocouple fails, it may not send a signal to the gas valve, causing the flame to go out.

5. Air in the Gas Line: Air in the gas line can prevent the gas from reaching the burner properly, resulting in a flame outage.

6. Blocked Flue: The flue is a vent that allows combustion gases to escape. If the flue is blocked, it can create a lack of oxygen and cause the flame to go out.

7. Low Water Level: In some water heaters, a low water level can cause the flame to go out as a safety precaution.

Troubleshooting and Fixing the Problem

1. Check the Gas Supply: Ensure that the gas line is connected and the gas valve is open. If you have a propane tank, check the level and replace it if necessary.

2. Clean the Burner: Remove the burner and clean it thoroughly with a wire brush or compressed air. Remove any debris or obstructions that may be blocking the gas flow.

3. Inspect the Gas Valve: Check the gas valve for any damage or leaks. If the valve is faulty, it may need to be replaced.

4. Test the Thermocouple: Disconnect the thermocouple from the gas valve. Hold a lit match or lighter near the thermocouple. If the thermocouple is working properly, the gas valve should open and a flame should appear.

5. Purge Air from the Gas Line: Disconnect the gas line from the water heater. Open the gas valve and let the gas flow for a few seconds to purge any air. Reconnect the gas line.

6. Inspect the Flue: Check the flue for any obstructions, such as bird nests or debris. Clean the flue to ensure proper ventilation.

7. Check the Water Level: In water heaters with a water level sensor, ensure that the water level is sufficient. If the water level is low, refill the tank.

Prevention

To prevent the water heater flame from going out, follow these tips:

• Regularly clean the burner and inspect the gas valve.
• Have the water heater inspected and serviced by a qualified technician once a year.
• Avoid using the water heater if you suspect a leak or other malfunction.
• If the water heater is not in use for an extended period, turn off the gas supply and drain the tank.

Answers to Your Most Common Questions

Q: Why does my water heater flame go out after a few seconds?
A: This could indicate a faulty thermocouple or a lack of gas flow.

Q: What should I do if I hear a popping sound before the flame goes out?
A: This could be caused by air in the gas line. Purge the gas line to remove any air.

Q: How can I prevent my water heater flame from going out during a power outage?
A: Install a battery-powered ignition system that will continue to operate in the event of a power loss.

Q: What are the signs of a clogged burner?
A: A clogged burner may produce a yellow flame, have difficulty staying lit, or produce soot.

Q: How often should I clean the water heater burner?
A: It is recommended to clean the burner at least once a year, or more frequently if the water heater is used heavily.