Replace a Gas Oven Igniter

Gas ovens depend on a ceramic igniter to heat the oven chamber to baking temperature. When it fails—and they always do eventually—your oven won't light, no matter how long you wait or how many times you turn the knob. The igniter glows red-hot to ignite the gas when you open the valve, and after years of thermal cycling, it cracks internally and stops working. The good news is this is one of the few oven repairs you can handle yourself without special tools or certification. You'll need the model number from your oven's spec plate, a replacement igniter specific to that model, and about half an hour on a Saturday morning. The igniter sits inside the oven burner assembly at the bottom of the cavity. Once you locate it, access is straightforward: cut power, turn off the gas, and swap it out. No technical knowledge required—just methodical work and attention to not forcing anything. This repair costs a fraction of what you'd pay a service tech, and the part lasts another decade once replaced.

1. Kill Power First. Locate your home's electrical panel and find the breaker labeled for the oven or kitchen circuits. Switch it off. Wait 30 seconds, then try the oven light—it should be dead. This kills power to the igniter circuit and any electronic controls. Safety first: if you're unsure which breaker is the oven, kill power to the whole kitchen circuit rather than guess.
2. Stop the Gas Flow. Locate the gas shut-off valve behind or below your oven. It's usually a small knob on the gas line feeding the appliance. Turn it clockwise until it's perpendicular to the pipe—this is the off position. If there's no accessible shut-off valve at the oven, you'll need to use the main gas shutoff for the house. Let any residual gas dissipate for a full minute before proceeding.
3. Clear Your Access. Open the oven door fully and look for the hinge clips on both sides of the door frame. Some ovens have quick-release tabs you lift; others require you to remove a pin. Check your oven's manual if you're unsure. If the door has clips, lift them while pulling the door slightly toward you. The door will tilt out of the hinges. Set it aside flat on a blanket or towel on the floor—it's heavy and scratches easily.
4. Find the Igniter. Look at the bottom front-center area of the oven interior, usually just inside the opening or at the base of the oven burner tube. The igniter is a stubby ceramic rod, roughly 2–3 inches long, either white or gray. It will be connected to a thin wire harness with two spade connectors. If you can't see it, check the side of the burner assembly or look for the burner tube at the oven floor and trace it to find where the igniter sits. Take a photo with your phone for reference when you install the new one.
5. Disconnect the Wires. Look at the spade connectors where the igniter's wires plug in. Gently pinch the connector tab with your fingers or use needle-nose pliers to squeeze and wiggle the connector off the spade terminal. Do this for both wires if there are two. The connectors should come off with light pressure—don't yank or you'll break them. If the connectors are corroded or stuck, apply a tiny bit of penetrating oil and wait a minute, then try again.
6. Unbolt the Old Igniter. The igniter is held in place by either a single screw, a small bolt, or a bracket. Look directly under or behind the ceramic rod to find it. Use a screwdriver or the correct wrench to loosen and remove it. The igniter may take a moment to come free if it's been in place for years—wiggle gently while unscrewing. Once it's free, carefully slide the igniter out of its position, taking care not to crack the ceramic body.
7. Clean the Mount. Use a dry cloth or soft brush to wipe away any dust, debris, or rust from the spot where the old igniter sat. Check that the mounting surface is flat and that any mounting hole is clear. If there's corrosion or heavy grime, use a bit of fine steel wool or a wire brush to clean it gently. Don't use water—you want it completely dry before the new igniter goes in. A clean seat ensures good contact and reliable operation.
8. Seat the New Igniter. Slide the new igniter into the mounting location, aligning the ceramic rod with the burner tube opening. The spade connectors should point toward where the wires run. Insert the mounting screw or bolt and hand-tighten it first—don't force it. Once it's finger-tight, use your screwdriver or wrench to snug it down firmly, but not with all your strength. Over-tightening can crack the ceramic. The igniter should sit flush and stable without wiggling.
9. Lock in the Connectors. Take the wire connectors and push them firmly onto the spade terminals of the new igniter. You should hear or feel a small click when they seat properly. Pull gently on the connector to confirm it's fully seated—it shouldn't come off with light finger pressure. If both wires came off the old igniter, reconnect them in the same order and position. The connectors are keyed or sized to fit only one way, so you can't install them wrong.
10. Rehang the Door. If you took the door off, align the hinges back into their slots and lower the door gently onto the hinge pins. Make sure both sides engage evenly—if one side sits higher than the other, lift and realign. Once the door is seated, engage any quick-release tabs or replace hinge pins by sliding them back in from the side. Open and close the door a few times to confirm it swings smoothly and closes fully.
11. Reopen the Gas. Go back to the gas shut-off valve you turned off earlier. Turn the knob slowly counterclockwise until it's parallel with the pipe—this is the open position. You may hear the hiss of gas beginning to flow again, which is normal. Wait 30 seconds before turning the oven on. If you smell gas at any point, shut the valve immediately, open windows, and wait 10 minutes before investigating.
12. Light It Up. Go to the breaker box and switch the oven breaker back on. Return to the oven and turn the temperature dial to 350°F. Listen carefully—within 10–15 seconds, you should hear the igniter tick or buzz and then see a faint glow in the oven cavity near the burner area. The igniter will glow red-orange for 20–30 seconds, then the main burner flame should ignite with a soft whoosh. If you see flame and hear the oven heating, the repair is successful.