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Why does my gas oven go BOOM when it preheats?

Photo of a woman in front of a stove

Electrical appliances produce many noises. Some sounds are normal, but others can be concerning and signal a problem. At Ateliers G. Paquette in Montreal, Quebec and Repentigny, our expertise and vast inventory of spare appliance parts mean we can find the causes and solutions for a host of issues. Does your gas stove make a strange, startling boom as it preheats? Here's an explanation.

What's the phenomenon?

When you light your gas oven to preheat it, the ignitor usually lights a small amount of gas to get the appliance started. When the gas doesn't quickly turn into a flame, it accumulates for a moment before igniting suddenly. It's this delay in lighting that causes the explosive sound you hear.

Why does it make this noise?

The delay in lighting is most frequently caused by dirt. If the igniter is dirty or has a grease buildup, it can take longer to reach the temperature needed to ignite the gas in your oven. The heat has to pass through that layer of residue blocking the opening where the gas is released, and that brief delay causes the gas to accumulate.

What are the solutions?

The good news is that this problem is generally easy to fix by cleaning your oven’s ignition device. Simply turn off the oven’s gas supply and unplug the appliance. Then, follow the instructions in your owner’s manual to safely find and remove the part that needs cleaning. Soak it for about 20 minutes in hot, sudsy water, using an old toothbrush to loosen stuck-on residue. Ensure the part is dry before putting it back in place.

Has a good cleaning failed to correct the noise you hear when your oven is preheating? The problem may be a broken igniter, a damaged gasket or a gas leak. To be sure, request an inspection by one of our technicians.

Be aware that your ignition device may be too soiled to clean. In this case, you may need to replace it. Check the appliance’s user guide to be sure you get the correct part. You can also bring the old piece to one of our branches to get a new one.

Your source for spare parts in Quebec

At Ateliers G. Paquette, you’ll find all the spare parts you need to repair, your appliances. Have you already found what you need? We'd be grateful if you'd post a review of your experience with the branch that served you – Montreal, Quebec or Repentigny.


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