oven

Oven Burner won't light on gas range

If a burner on your gas range won't light, the most common causes are a dirty or wet igniter, a clogged burner port, or a faulty igniter switch. This guide will walk you through cleaning and inspecting the burner components to restore reliable ignition. Most of the time, this is a simple fix you can do at home with basic tools and no special skills.

1. 1

   Turn Off the Burner and Unplug the Range

   Make sure the faulty burner knob is in the OFF position. Turn off all other burners as well. Unplug the range from the wall outlet before doing any work. Even though you are working with gas, the ignition system runs on household electricity, and unplugging prevents accidental sparking or electric shock while you work.

   warning

   Never work on a gas appliance while it is plugged in. Unplug the power cord completely before touching any components.

   warning

   If you smell gas strongly at any point, do not proceed. Leave the house immediately, avoid using any switches or flames, and call your gas utility provider from outside.

2. 2

   Let the Stovetop Cool Down Completely

   If the range was recently used, allow all burners and grates to cool down fully before touching them. Metal components retain heat and can cause serious burns. Wait at least 30 minutes after the last use before beginning this repair.

   warning

   Touching hot grates or burner caps can cause severe burns. Always confirm all surfaces are cool before handling them.

3. 3

   Remove the Grate and Burner Cap

   Lift the heavy cast-iron grate off the stovetop and set it aside. Underneath, you will see the burner cap — a flat or slightly domed disc that sits on top of the burner base. Simply lift the burner cap straight up; it is not screwed down. Set it on a clean towel on your counter. Take note of how everything is oriented so you can put it back correctly.

   tip

   Take a photo of the burner assembly before disassembling it. This makes reassembly much easier, especially if you are working on multiple burners.

   warning

   Grates can be very heavy. Use both hands and set them down carefully to avoid injury or damage to your countertop.

4. 4

   Inspect and Clean the Burner Cap

   Examine the burner cap for grease buildup, food debris, or corrosion. These are extremely common causes of ignition failure. Wash the burner cap in warm, soapy water using a soft brush or old toothbrush to scrub out any clogged ports or slots around the edge. Rinse thoroughly and dry completely with a clean cloth. Do not put a wet burner cap back on the stove — moisture is one of the top reasons burners fail to light.

   tip

   A toothpick or straightened paper clip works well to clear individual clogged ports on the burner cap. Never use a metal drill bit or wire brush, as these can widen or damage the ports.

   warning

   Make sure the burner cap is 100% dry before reinstalling it. Even small amounts of moisture can prevent ignition.

5. 5

   Clean the Burner Base and Ports

   Look at the burner base — the part that remains on the stovetop after you remove the cap. You will see small gas ports around its edge. Use a dry toothbrush or a toothpick to clear any debris from these ports. Avoid using water directly on the burner base since it is connected to the gas supply. Wipe the area around the base with a barely damp cloth, then dry it immediately.

   tip

   Compressed air from a can (like the type used for electronics) works great for blowing debris out of the burner ports without moisture.

6. 6

   Clean the Igniter

   The igniter is the small ceramic and metal tip located next to the burner base. It is the component that produces the clicking spark. Food spills and grease on the igniter are a leading cause of burner failure. Use a dry toothbrush to gently scrub the white ceramic part of the igniter. If it is heavily soiled, you can lightly dampen a cotton swab with rubbing alcohol and clean around the tip. Allow it to air dry completely for several minutes before testing.

   warning

   The igniter is fragile. Do not use metal tools, scrub pads, or excessive force on it. A cracked igniter will need to be replaced.

   tip

   A discolored or cracked igniter tip is a sign the igniter itself may be worn out and needs replacement, even after cleaning.

7. 7

   Reassemble the Burner

   Once all parts are completely clean and fully dry, place the burner cap back onto the burner base. Make sure it sits flat and is properly aligned — most caps have a notch or tab that matches a slot on the base. A misaligned burner cap is another common cause of ignition problems. Place the grate back over the burner.

   tip

   Gently wiggle the burner cap after placing it to confirm it is seated flat. If it rocks or sits at an angle, reposition it before testing.

8. 8

   Plug In the Range and Test the Burner

   Plug the range back into the wall outlet. Turn the faulty burner's knob to the LITE position and listen for clicking. The burner should ignite within a few seconds. If it lights, turn it off and on several times to confirm it is working reliably. If the burner still does not light but you can hear clicking, the gas flow may be partially blocked or the igniter may need replacement. If there is no clicking at all, the igniter or igniter switch likely needs to be replaced.

   warning

   If the burner does not light after 5 seconds of clicking, turn the knob to OFF immediately. Do not allow gas to build up in the kitchen. Ventilate the area before trying again.

   tip

   Testing in a slightly darkened room can help you see if a faint spark is present at the igniter, which helps you pinpoint whether the problem is with the spark itself or the gas flow.

9. 9

   Check the Igniter Switch if the Problem Persists

   If cleaning did not solve the problem and there is no clicking sound when you turn the knob, the igniter switch — located beneath the knob panel — may be faulty. Pull the burner knob straight off (no tools needed on most models). Look for visible signs of damage, burning, or corrosion around the switch area. If the switch looks damaged or testing with a multimeter shows no continuity, the switch needs to be replaced. At this point, if you are not comfortable with further disassembly, consider calling a qualified appliance repair technician.

   warning

   Always unplug the range before removing the knob panel or accessing any wiring. Electrical components behind the panel can cause shock if the power is on.

   part

   A replacement igniter switch is a common, affordable part available from appliance parts retailers. Make sure to match it to your specific range model number.

10. 10

    Know When to Call a Professional

    If you have cleaned all components, replaced the igniter or switch, and the burner still will not light, or if you detect a persistent gas smell, it is time to call a licensed appliance repair technician or your gas utility company. Issues with the gas valve, internal gas lines, or the control module require professional tools and expertise. Do not attempt to repair internal gas supply components yourself.

    warning

    Never attempt to repair or modify gas supply lines, valves, or regulators yourself. This work must be performed by a licensed professional.

    tip

    Have your range's model number ready when calling for service or ordering parts. It is usually printed on a label inside the oven door frame or on the back of the unit.