Fixing or Replacing a Water Heater Pilot Light: Expert Tips

Fixing a Pilot Light

Safety First: Turn Off the Gas

Before working with your pilot light, make safety your top priority:

• Gas valve: Turn the gas control valve to the “Off” position and wait at least five minutes to let any residual gas dissipate.
• Ventilate: Open windows or doors nearby for airflow in case of any lingering gas.
• Smell check: If you detect a strong gas odor, contact a professional immediately rather than proceeding.

Access the Pilot Light Assembly

Locate the pilot light for inspection and relighting:

• Cover removal: Remove the access panel at the base of the water heater to reveal the burner assembly and pilot light.
• Clear the area: Ensure the area around the pilot is free from debris or dust that could affect ignition.
• Locate the gas control knob: Confirm the knob is set to “Pilot” to prepare for relighting.

Relight the Pilot Light: The Key Steps

Relighting the pilot light may be all you need to get back in action:

• Press and hold the pilot button: While holding, use a lighter or matchstick to ignite the pilot light.
• Wait for ignition: Keep the button pressed for 30-60 seconds to ensure the flame stays lit.
• Release slowly: Once ignited, release the button and observe the flame to make sure it remains steady.

Check the Flame Quality

A healthy pilot’s light is steady and blue. If yours is flickering or yellow:

• Adjust the flame: Use the gas control to adjust flame height if possible.
• Inspect for obstructions: Dust or debris in the pilot assembly may interfere. Gently clean the area if needed.
• Consider the thermocouple: If the flame won’t stay lit, a faulty thermocouple might be to blame. This part may need replacement to keep the pilot light stable.

Replace the Pilot Light or Thermocouple If Needed

When relighting doesn’t work, replacement might be necessary:

• Identify worn parts: If the pilot assembly looks damaged or corroded, it’s time for a replacement.
• Thermocouple replacement: This component ensures gas flow; replace it if the flame keeps going out.
• Professional help: Replacing the pilot assembly requires disassembly and specialized tools. Consider calling a technician if you’re not familiar with gas connections.

Turn the Gas Back On and Test

After successfully relighting or replacing, restore gas flow to check your work:

• Gas valve: Turn the gas control knob back to “On” and observe for any unusual sounds or smells.

• Check for a continuous flame: Confirm that the pilot light stays lit without flickering.

• Hot water test: Run a faucet to see if the heater resumes normal heating. If successful, you’re back in business!