how to tell if pilot light is out water heater

Daniel Parker

3 min read

·

20-01-2025

1

0

Share

Is your shower suddenly spitting out icy water? A common culprit could be a dead water heater pilot light. This article will guide you through how to identify a pilot light problem and what to do next. Knowing how to check your water heater pilot light can save you a cold shower and a potential service call.

Understanding Your Water Heater Pilot Light

A pilot light is a small, constantly burning flame that ignites the gas burner in your water heater. This flame is essential for heating your water. If the pilot light goes out, your water heater won't work, leaving you with cold water.

Identifying a Dead Pilot Light:

There are several key signs indicating a dead pilot light:

• Cold Water: The most obvious sign is a sudden drop in water temperature. If your hot water is lukewarm or cold, it's a strong indicator that something is wrong with your water heater.
• No Flame: If you can visually inspect the pilot light (carefully!), the absence of a small, consistent flame is confirmation.
• Clicking Sounds: You might hear repeated clicking sounds from your water heater. This usually indicates the igniter trying to light the pilot but failing because the pilot light is out.
• Lack of Gas Smell: While usually a safety feature, the absence of a faint gas smell (after checking for gas leaks as described later) might indicate the pilot isn't lit, as gas isn't being ignited.

How to Check Your Water Heater Pilot Light

Safety First: Before attempting any inspection or repair, prioritize safety.

• Turn off the gas supply: Locate the gas shut-off valve (usually near the water heater). Turn it to the "off" position. This prevents gas leaks.
• Ventilate the area: Ensure good ventilation in the area around your water heater. Open windows and doors if necessary. This is crucial in case of a gas leak.
• Check for gas leaks: Before lighting anything, use soapy water to check for gas leaks around the gas lines and connections. Apply a small amount of soapy water to the connections. If bubbles form, you have a leak, and you should call a qualified gas technician immediately. Do not attempt to light the pilot if you detect a gas leak.

Visual Inspection:

Once you've confirmed the gas is off and there are no leaks, carefully observe the pilot light area. You may need to use a flashlight for a clearer view. Look for a small, steady flame.

If the pilot is out:

Refer to your water heater's manual. The relighting process varies slightly depending on the model. Generally, the steps involve:

1. Turn the gas supply back on. Open the gas valve slowly.
2. Locate the pilot light button or switch. This is usually located near the burner area.
3. Hold the pilot light button and press the igniter button. Follow the directions in your water heater manual precisely. You might need to hold the button for 30-60 seconds to allow the pilot to ignite.
4. Check the flame. Ensure a small flame is burning steadily.
5. Release the pilot light button. Carefully monitor the flame for a few minutes after releasing the button to ensure it stays lit.

Troubleshooting a Persistent Problem

If you've tried relighting the pilot light multiple times without success, or if it keeps going out, there could be a more significant problem. These issues may require professional help:

• Blocked pilot orifice: Debris can block the gas flow to the pilot light. A gas technician can clean this.
• Faulty thermocouple: The thermocouple senses the pilot flame and keeps the gas supply open. If faulty, it won't maintain the flame. Replacement is needed.
• Gas leaks: As previously mentioned, any gas leaks are serious and require immediate professional attention.
• Insufficient gas supply: A problem with the gas line supplying your water heater can prevent ignition. A technician can diagnose this issue.

When to Call a Professional:

If you're uncomfortable working with gas appliances, have any doubts about your ability to safely relight the pilot light, or if the problem persists despite your efforts, call a qualified gas technician. Gas leaks are dangerous.

Remember, working with gas appliances can be hazardous. If in doubt, always prioritize safety and consult a professional. A few minutes of safety is far more valuable than the potential dangers associated with gas.