By Brooks Plumbing

Feeling the Cold? Your Water Heater Might Be Trying to Tell You Something

You wake up ready to start your day, only to find the shower running ice cold. You check the water heater and notice the pilot light is out—again. It’s frustrating. Inconvenient. And it can leave you wondering, “Why does this keep happening?”

At Brooks Plumbing , we believe no one should be left in the cold or forced to constantly relight their water heater pilot. If your pilot light keeps going out, there’s always a reason—and we’re here to help you find it, fix it, and get your hot water flowing reliably again.

Let’s break down the common causes behind this issue and what you can do about them.

First, What Is the Pilot Light?

The pilot light is a small flame that ignites the gas burner in your water heater. When it goes out, your heater can’t warm the water, and you’re stuck with a chilly surprise. While older models rely on standing pilot lights, newer models may use electronic ignition. If you have a traditional gas water heater, the pilot flame is critical.

When it won’t stay lit, it’s not just an annoyance—it’s a red flag that something’s wrong.

Top Reasons Your Water Heater Pilot Light Keeps Going Out

Our friends at Nicholson have helped us come up with the top reasons why your water heater pilot light keeps going out:

1. A Faulty Thermocouple

The thermocouple is a small, heat-sensitive device that acts as a safety mechanism. It senses when the pilot flame is burning and allows gas to flow to the burner. If the flame goes out or the thermocouple is faulty, it shuts off the gas to prevent leaks.

Common issues with the thermocouple:

• It’s dirty or covered in soot
  
• It’s bent away from the flame
  
• It’s worn out or broken
  

The fix: Sometimes, a simple cleaning or gentle repositioning of the thermocouple will do the trick. If it’s damaged or old, it needs to be replaced. This is a common and inexpensive repair.

2. Drafts or Airflow Issues

Water heaters located near doors, windows, or vents are prone to drafts. A sudden gust of wind can blow out the pilot light, especially if your unit isn’t properly shielded.

Signs of a draft issue:

• The flame flickers or appears unstable
  
• You notice the light going out when doors are opened or during windy weather
  

The fix: Try sealing nearby gaps or installing a draft hood. It might also be necessary to relocate the heater or adjust its ventilation if airflow issues persist.

3. Dirty or Clogged Pilot Tube

The pilot tube delivers gas to the pilot flame. Over time, dirt, dust, or corrosion can clog the tube, preventing a steady stream of gas from reaching the flame.

Warning signs:

• Weak or flickering pilot flame
  
• Light goes out shortly after being relit
  

The fix: The tube can be cleaned using a thin wire or compressed air, but it’s essential to be cautious. Improper cleaning can cause damage or worsen the blockage. If you’re unsure, call a professional.

4. Bad Gas Control Valve

The gas control valve is responsible for regulating the flow of gas to the pilot and burner. If it malfunctions, it might intermittently cut off the gas supply, even when it shouldn’t.

How to spot it:

• The thermocouple and pilot tube are in good shape, but the pilot still won’t stay lit
  
• The valve is old or has visible corrosion
  

The fix: Replacing the gas control valve is a job for licensed professionals. This part involves direct interaction with the gas line and must be handled with care.

5. Moisture or Condensation Buildup

In humid environments or with certain types of water heaters, moisture can accumulate near the pilot assembly. When the unit heats up, condensation can drip onto the flame, extinguishing it.

What to watch for:

• Water droplets near the burner area
  
• A pilot light that only goes out shortly after the heater has been used
  

The fix: Addressing this often involves improving ventilation, insulating the heater, or adjusting where and how moisture collects in your utility space.

When to Call in a Pro

It’s tempting to handle pilot light issues yourself—and some problems, like cleaning dust off the thermocouple, are safe DIY fixes. But when dealing with gas appliances, safety should always come first.

Call Brooks Plumbing if:

• The pilot light goes out repeatedly, even after relighting
  
• You smell gas or notice signs of a leak
  
• You’ve tried basic fixes, and the issue persists
  

Our trained technicians will thoroughly inspect your water heater, identify the root cause, and perform safe, lasting repairs. We’ll walk you through what we find, explain your options, and restore hot water to your home—without the guesswork.

Prevent Future Pilot Problems

A little maintenance goes a long way. Here are some tips to help keep your water heater running reliably:

Schedule annual maintenance to clean components and check for wear
Keep the area around your heater clean and free of debris
Ensure proper ventilation and check for drafts
Don’t ignore minor issues—addressing them early prevents costly repairs

Hot Water Shouldn’t Be a Gamble

At Brooks Plumbing, we understand how vital hot water is to your daily life. Whether it’s your morning shower, doing dishes, or running laundry, you deserve dependable performance from your water heater.

If your pilot light keeps going out, don’t settle for cold showers and temporary fixes. Let our team provide a long-term solution that keeps your water hot and your home comfortable.

Trust the pros. Trust Brooks Plumbing.