Gas Range Burner Will Not Light

When a gas range burner will not light, it is usually caused by a simple issue that you can often resolve yourself. However, some problems require professional attention.

Understanding How Gas Burners Work

When you turn the knob, it opens the gas valve and activates the spark igniter. The spark ignites the gas, and the flame sensor confirms ignition. If the burner does not light within a few seconds, the system shuts off gas flow for safety.

Common Causes

1. Clogged Burner Ports

Food debris and grease can clog the small ports around the burner where gas exits.

Solution: Clean the burner ports with a toothpick or small brush. Never use anything that could break off inside.

2. Wet Burner Components

Moisture from cleaning or boilovers can prevent ignition.

Solution: Ensure burner caps and components are completely dry before attempting to light.

3. Misaligned Burner Cap

The burner cap must be properly seated for gas to flow correctly.

Solution: Remove and reseat the burner cap, ensuring it is level and centered.

4. Faulty Igniter

If you hear clicking but see no spark, or the spark is weak, the igniter may be faulty.

Solution: Professional replacement is typically required.

5. Gas Supply Issues

The burner cannot light without gas flow.

Check: Are other gas appliances working? Is the gas supply valve open?

When to Call a Professional

Contact a technician if you smell gas but the burner will not light, multiple burners fail simultaneously, or basic troubleshooting does not work.