RepairUpdated June 12, 2026
Many homes in Crest Hill rely on traditional tank water heaters fueled by natural gas. A common headache with these units is a pilot light that keeps going out. When that happens, hot water disappears fast. With most of our area's housing built between the 1960s and early 2000s, we see a wide range of water heater models, some showing their age. Knowing how to safely approach pilot light issues can mean the difference between a quick fix and a much larger repair bill.
Why Water Heater Pilot Lights Go Out
In our experience, a pilot light can go out for several reasons. Sometimes it's as simple as a draft blowing through a basement or utility room, especially with Crest Hill's cold, windy winters. Other times, it points to worn-out components like a faulty thermocouple, a clogged pilot orifice, or even gas supply problems. Older water heaters, especially those with sediment buildup at the bottom of the tank, may also have more frequent ignition troubles.
Frequent freeze-thaw cycles in our region can stress venting and seals, letting cold air sneak in. Basement water issues, which are common due to Crest Hill's clay-rich soils and high water table, can also lead to rust or corrosion around the burner assembly. All of these factors increase the chances of pilot light failures.
Safety First for Pilot Light Troubles
Any time you're dealing with gas appliances, caution comes first. If you ever smell gas, leave the house and call your gas utility before doing anything else. For minor pilot issues without any smell of gas, homeowners can check a few basics before calling in a pro.
- Make sure the gas control knob is set correctly ("pilot" position)
- Wait several minutes after turning the knob off before relighting, to allow any residual gas to clear
- Inspect the area for drafts or open windows nearby
- Look for obvious signs of moisture, rust, or corrosion near the water heater's base
- Check that the burner access door is properly in place
If you're unfamiliar with your water heater's controls, the owner's manual usually shows the relighting procedure. Modern units may have a piezo igniter (push-button spark), while older tanks use a long match or wand.
Step-by-Step Relighting a Typical Pilot Light
If your model is accessible and there's no sign of a serious gas leak, you can try these steps:
- Turn the gas control knob to OFF and wait at least 5-10 minutes.
- Set the knob to PILOT.
- Hold down the pilot button (or depress the knob) while lighting the pilot with a long lighter or using the built-in igniter if equipped.
- Continue holding for 30-60 seconds to heat up the thermocouple.
- Release the button and check if the pilot stays lit. If it does, turn the knob to ON for normal operation.
If the flame won't stay lit, the thermocouple might be bad, the pilot orifice may be clogged, or there's an issue in the gas line itself. At that point, it's best to have a licensed plumber get involved to avoid creating a bigger hazard.
Common Problems Our Team Sees in Crest Hill Homes
We routinely run into water heaters where the thermocouple has worn out from years of service. On older units, sediment buildup at the tank's base can lead to overheating, which shortens the life of internal components. Rust and corrosion from basement dampness or seepage, common in homes near the Des Plaines River or with high water tables, often cause pilot failure. We also see burner assemblies plugged with dust or pet hair, which can snuff out the flame.
Sometimes the problem isn't with the water heater at all, but with the gas supply line. A failing gas valve or a kinked flex connector can interrupt flow. Our technicians are trained to check the entire system, not just the pilot light itself. If major repairs are needed, we may discuss water heater replacement or upgrade options.
When to Call an Expert for Repair
Relighting the pilot is one thing. Troubleshooting ongoing problems is another. If the pilot light won't stay lit even after you've tried the standard steps, or if you ever notice a faint gas odor, professional help is needed. A persistent pilot problem could point to a failed thermocouple, blocked air intake, cracked heat exchanger, or a more serious gas supply issue.
In some cases, repeated outages may also indicate other plumbing problems, like basement moisture leading to rust. Our crew often coordinates with leak detection and repair or sump pump services if we find signs of water intrusion around the water heater. Addressing these issues together helps Crest Hill homeowners avoid repeat problems in the future.
Preventive Advice for Crest Hill Homeowners
To avoid repeat pilot light headaches, schedule annual maintenance. Our team can clean the burner assembly, check the thermocouple or flame sensor, and flush sediment from the tank. This extends the water heater's life and helps prevent sudden outages.
Homes in older neighborhoods, or those experiencing foundation issues from clay soil or freeze-thaw cycles, benefit from a full plumbing checkup. We can inspect supply lines for corrosion and recommend repiping if needed. Sometimes, pilot issues are just the first sign of larger aging-plumbing problems.
If you experience pilot light trouble or have questions about your water heater in Crest Hill, our crew is here to help. Call us at 779-600-2704 for fast troubleshooting, repairs, or upgrades. We'll make sure your hot water stays safe and steady all year.