Why in Nashville does the water heater pilot light keep going out?

 

Understanding the Water Heater Pilot Light

  Imagine your water heater has a small, continuous flame called a pilot light. This flame is like a tiny helper that keeps the water heater ready to warm your water when needed. When the pilot light goes out, the water heater can’t work properly until it is lit again. Several factors might cause the pilot light to go out, especially in places like Nashville.

 

Common Reasons for the Pilot Light Going Out

  There are a few main reasons that might occur:

• Dust and Debris: Over time, dust or small insects can block the small opening through which the flame comes out. This can weaken the flame and make it easier for drafts to blow it out.
• Air Drafts: If the water heater is near windows, doors, or other openings, wind or air movement can push the flame away. Even if the heater is in a cozy spot, these air currents can sometimes cause problems.
• Weak Thermocouple: The thermocouple is a safety device that senses if the pilot flame is lit. If it gets worn out or misaligned, it might not detect the flame properly and shut off the gas supply, causing the pilot light to go out.
• Gas Supply Problems: Sometimes, there may be issues with the gas pressure or small blockages in the gas line. When the gas isn’t coming in at the right amount, the pilot flame can flicker and extinguish.
• Moisture or Corrosion: In humid climates or in environments with a lot of moisture, parts of the pilot assembly might corrode. This can cause poor flame stability, and the pilot light may not stay lit.

 

Troubleshooting and Fixing the Issue

  If you notice that the pilot light won’t stay lit, here are some simple steps you can try:

• Clean the Pilot Tube: Carefully inspect and clean the small opening using a soft brush or compressed air. This removes dust and debris that might block the flame.
• Check for Drafts: Look around the water heater for any openings or vents that might be causing an air draft. If you find any, adjust or cover them temporarily to see if the flame stays lit.
• Inspect the Thermocouple: Make sure the thermocouple is properly positioned so it can sense the pilot flame. If it looks worn or out of place, it might need to be replaced by a professional.
• Review the Gas Supply: Confirm that the gas valve is fully open and that there are no signs of blockage. A low or fluctuating gas supply could be causing the pilot to falter.
• Keep an Eye on Moisture: Ensure there are no leaks or excess moisture near the heater. Sometimes, simple fixes like improving ventilation or sealing leaks can help prevent corrosion.

Sometimes local environmental factors, like the climate in Nashville, can make these issues more frequent. Even in a place as bustling as St. Louis, similar conditions might occur, albeit with slight differences due to the local weather and home construction styles.

 

When to Call a Professional

  If you’ve tried the basic checks and the pilot light still won’t stay lit, it might be time to call a professional. A trained technician can:

• Perform a detailed inspection of all components of your water heater.
• Test the gas pressure and adjust or replace parts like the thermocouple if needed.
• Resolve environmental or installation issues that might be causing ongoing problems.

Taking these steps can help ensure that your water heater works safely and reliably, keeping your home warm and comfortable without constant interruptions.