Why Does Your Oven Makes Noise When Heating up?

An oven is a staple in most kitchens. It is convenient in making so many dishes, ranging from baking, grilling to broiling. However, some tend to make a weird noise when in use which can be uncomfortable. So, what do you do?

You have to first establish the kind of oven you are using. Electric and gas ovens make sounds, but these sounds differ depending on usage. A certain noise that a gas oven makes as it is heating up may not be the same as that of an electric one.

Determining whether the sound coming from your oven is normal or not is the first step to figuring out the source of the noise. It makes it easy for you to know whether you need to call a professional or it’s something you can fix on your own.

Oven Noise When Heating Up

Noise is common in kitchens. With so much going on, all appliances, even the best ones, tend to produce some sounds. However, there is cause for alarm when your relatively quiet oven starts producing sounds when heating up. This sound is not like the normal expansion or fan noises that it usually makes.

To help you know whether the sounds made by your oven are normal or not, let us first look at the noises you should be expecting. These are the baseline sounds all ovens make when preheating. It will make it easier to distinguish the sounds next time you hear them.

Types of Noises Made by Ovens

Cooling System

Both gas and electric ovens have cooling systems. A faulty cooling system can create a disturbing sound as the oven heats up.

Electric ovens usually need fans more than gas ones because they need more circulation when the oven heats up. On the other hand, gas ovens heat up evenly, so do not use the fans to help distribute the heat.

Both ovens produce a humming sound when operating. This sound is usually the fan turning on when the oven finishes preheating.

Some ovens have fans that automatically turn on when in operation, while others need you to turn them on manually. For the latter, you should not engage the fan while the oven is working, as this could cause it to malfunction, creating that grinding noise.

Some of the things that might cause the fan to make noise include:

  • A faulty fan motor that screeches when turning the blades
  • Loose door locks or body panes that vibrate when the fan shakes the oven
  • Loose fan blades hitting surfaces when the fan is on.

If you see that one of these problems is causing the cooling system to malfunction, you can easily fix it. All you will need to do is tighten the nuts and bolts and ensure everything is secure. If the parts are too far gone, you can order replacements or get a repair guy to fix them for you.

Gas Ovens

Gas ovens can produce many different sounds, including:

Hissing

Gas ovens can produce hissing sounds either when you turn them on or when they are operating. This noise doesn’t necessarily have to alarm you as it can be from the food you are making. The hissing sound can also be the sound of the gas being released into the burner.

Clicking Sounds

The sound sometimes continues even as the oven is working. The usual cause of the clicking sound is the heating element. The temperature controls can also cause the sounds while the oven heats.

These noises indicate that the gas is working and can also signify temperature changes. The gas supply to the oven usually shuts off once the oven gets to the desired temperature. This can sometimes cause the temperature to lower a little. The oven producing the clicking sound can indicate that it is trying to reach the set temperature again.

Popping Sounds

These are also another common occurrence with gas ovens. These sounds indicate that the oven heated up too quickly before the elements could fully adjust. It can also mean that there’s food boiling or spilling out of the container as it cooks.

Popping sounds can also be the result of built-up food residue and grease. The heating element must pass through all the residue before lighting the gas. Consequently, the residue heats up past its required temperature producing a popping sound and sometimes a burning smell.

Booming Sound

Dirty igniters sometimes produce an abrupt booming sound. This sound closely resembles the booming you hear when the oven is heating up. It can mean that the oven’s outer casing expands too quickly or that the igniters have too much buildup.

How to Fix Oven Noises

Now that we know some of the sounds your oven can produce, let’s look at how to fix them. If you are unsure about handling the oven yourself, please get a professional, especially when dealing with gas ovens. Gas can be dangerous and lead to accidents and severe damages when not handled correctly.

Adjust the Air Shutter

You can tell whether the problem is with the air shutter if you hear loud hissing noises when preheating. This could be because there is too much air or too much gas passing through to the burner. The force of the flowing air through a smaller space can create a loud hiss.

To fix this, you only need to adjust the shutter to accommodate the amount of gas or air passing. The shutter is located behind the gas valve. Once you find it, loosen the screw holding the sliding plate just a little to create some allowance.

After this, turn the burner on and adjust the shutter slowly until you see the flame turning blue. If you can still hear the sound after doing this, check the gas valve. The sound could mean that the gas isn’t passing through the right channels.

Check on the Fan

The fan can create a faulty cooling system that can affect your oven even when it is off. You need to prevent this as soon as you can before it creates an even bigger problem. Check on the fan behind the oven’s back panel to ensure everything is working as it should.

Try spinning the fan blades manually once you unscrew the pack panel. Spin them to see whether there are any obstructions. If you feel them colliding with something, push them back to where they belong. You can also get pliers and bend the fan blade tips to prevent them from scratching the oven’s surfaces.

If you find that the blades are stiff or unmoving, the problem could be with the motor. Remove the nut holding the blades together and take off the fan and washer. This leaves the oven bare, giving you easy access to the motor.

Wiggle the motor back and forth to see if it is secure. A loose motor can spell trouble, and you might need to replace it altogether.

To replace it, unscrew the oven cover and access the motor. Unscrew the bracket holding the motor, detach the wire connecting it, and remove it.

Put the replacement motor on the bracket, then return everything as it was. Make sure you carefully connect the wire to the motor and return the fan blades to the right spot.

Clean the Igniter

The gas igniter needs to light some gas to start heating the oven. However, if the igniter is dirty, it can take a long time and use up a lot more gas to start the oven. This is because it has to work through all the buildup. All the while, gas accumulates in the chamber, creating a booming sound when the ignitor lights up.

The boom indicates that some of the buildups are now burnt off. You can stop this from happening by cleaning the ignitor once every few months. Grease and other food particles can get to the igniter through the slits in the panel, creating buildup.

You can either clean it yourself or get a technician to do it. Be very careful if you choose to clean it yourself as the area is hard to reach and a small mistake can spell trouble. Also, do not use a lot of force as that might create a gas leak.

Replace the Heating Elements

The heating elements in electric ovens can make a popping or crackling noise. This happens when they have to get through food and grease buildup. You can remove the buildup using a baking soda and vinegar solution. Let it sit on the heating coil for up to 30 minutes after removing all shelves and the bottom panel.

The mixture loosens the fixed dirt, making it easy to wipe. If the oven still makes the sounds after cleaning the element, it might be a sign that you need to replace it.

You must get a replacement that is similar to that which you have.

To replace it:

  1. Unscrew the plate securing the heating element
  2. Detach the wires connecting the coil to the oven
  3. Put in the new heating element and reattach the wires
  4. Push the heating coil until it connects with the back panel
  5. Screw the plate back on.

Do not hesitate to call in an expert if you think the process is too complicated.

Final Word

There might be a ton of reasons why your oven produces noises while working. Try finding out the cause of the problem and determine whether it is something you can fix by yourself or will need help. Keep in mind that dealing with electric and gas ovens can be dangerous so, be very careful.