Water Heater Pilot Light & Ignition Repair

Troubleshoot gas water heater ignition and repeated shutdowns safely.

What to know first

Troubleshoot gas water heater ignition and repeated shutdowns safely. The right next step depends on the appliance model, the symptoms, and conditions at your property. A qualified professional can explain findings and discuss the scope of work before you approve a repair.

Pilot versus electronic ignition

Some gas heaters use standing pilots, while others use electronic ignition. The model determines the appropriate checks and repair parts. An unlit burner can have several causes, including controls, sensors, or fuel-supply problems.

Gas safety first

If you smell gas, leave the building and contact the gas utility or emergency services from a safe location. Do not operate switches or attempt repeated ignition. Follow the appliance manufacturer’s instructions only when conditions are safe.

What a professional checks

A qualified service professional can examine ignition components, combustion air, venting, and relevant safety controls. The repair should address the reason the system shut down, not bypass a protective device.

Before you call

Provide the make and model, any displayed fault code, and whether the issue began after an outage or maintenance. Explain whether the heater attempts ignition or stays completely inactive.

What happens when you call?

Tell us your city or ZIP code, the water heater type, and the symptoms you have noticed. You can request a free, no-obligation estimate and confirm local service availability. Independent local service professionals perform the work; scheduling, any diagnostic charges, and project terms should be confirmed before service.

Related resources

Water Heater Leak Repair · Water Heater Thermostat Repair · Water Heater Heating Element Repair · Water Heater Pressure Relief Valve Service · Browse service areas

A pilot that will not stay lit

A pilot issue can involve ignition components, flame sensing, fuel supply, or safety controls. Some newer gas heaters use electronic ignition and have no standing pilot at all. Check the model before describing the symptom.

Avoid repeated relighting

Follow the manufacturer’s instructions only when conditions are safe. If you smell gas, leave and contact the utility or emergency services. Repeatedly attempting ignition without understanding why it fails can increase risk.

Questions to Ask Before Approving Work

What evidence supports the diagnosis?

Ask the professional to explain which observation or test points to the proposed cause. For water heater pilot light repair, symptoms can overlap with other equipment or plumbing problems, so a clear explanation matters.

What is included in the estimate?

Confirm whether the quote covers diagnosis, parts, labor, required materials, applicable permits, cleanup, and any return visit. Ask whether after-hours charges or additional work could change the total.

What should happen after the work?

Ask how the completed work will be tested, which warranty applies, and what to do if the same symptom returns. Keep the model information and written service record for future reference.

How to Prepare for an Informed Service Decision

A pilot issue can involve ignition components, flame sensing, fuel supply, or safety controls. Some newer gas heaters use electronic ignition and have no standing pilot at all. Check the model before describing the symptom. The important distinction is between what a homeowner can observe and what requires testing by a qualified professional. Make a note of changes over time, including whether the symptom appears only during heavy hot-water use, after a power interruption, or while other fixtures are running. This record helps the professional investigate the actual fault instead of guessing from a single symptom.

Follow the manufacturer’s instructions only when conditions are safe. If you smell gas, leave and contact the utility or emergency services. Repeatedly attempting ignition without understanding why it fails can increase risk. Before authorizing work, ask which findings are confirmed and which are still possibilities. Request a written description of the recommended work, what is excluded, and how successful operation will be checked afterward. If a replacement is proposed, ask why a repair would not address the problem and whether the proposed equipment suits the existing installation.