LG oven making a loud noise — how urgent is it?
Often a failing convection-fan motor or a worn cooling-fan bearing. Right now, switch the oven off at the breaker: a grinding, scraping or banging noise usually means a part is rubbing or has come loose, and each run makes the repair bigger. If anyone smells gas, everyone leaves the home now, leaves every switch as it is, and calls the gas utility from outside. A burning smell with the noise, sparks, or smoke moves this up: a photo that shows wiring a person could touch makes the Triage Profile say EMERGENCY, and the word holds.
Show us the oven.
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In the next five minutes
Safe first steps, before the call. Nothing here needs a tool.
If you smell gas: don’t touch any switch or plug, leave, then call the gas company or 911 from outside.
No gas smell? Note what the noise sounds like and when it happens, then turn the oven off and switch off its breaker.
Take a photo of the oven and any code on the display, without opening anything.
Everything else about this problem
Is it an emergency?
Is a loud noise from an LG oven an emergency?
Usually not an emergency. A grinding, rattling or humming that has just started most often comes from a fan, motor, belt or loose panel. Stop using it and cut the power if the noise comes with a burning smell, smoke or sparks; if it runs on gas and you smell gas, leave and call the gas company or 911 from outside.
If you manage this unit
Ask the resident
- Does the noise only happen while it is running, or also when it is idle?
- Is there any smell of burning with it?
Say this to your resident
Thanks for telling me about the noise from the oven. Please switch the oven off at the breaker and leave it off for now: a loud noise usually means a part is rubbing or has come loose, and running it makes the repair bigger. If there's a burning smell with it, tell me straight away. If you smell gas, leave the home now, leave every switch as it is, and call the gas utility from outside, then call me. Send me a short video with the sound and a photo of the oven, and I'll get an appliance technician out.
Who to call
An appliance technician Send the technician the video with the sound: it shows them where to start.
Symptoms & causes
Often a failing convection-fan motor or a worn cooling-fan bearing.
Loud noises in an LG oven often indicate a failing convection fan motor or a loose fan blade, which can manifest as grinding, rattling, or squealing during preheating or baking. These sounds are typically most noticeable when the fan is actively circulating air within the oven cavity. Another potential root cause could be a faulty cooling fan, which operates to protect the control board from overheating, or even a failing relay on the main control board itself.
Questions people ask
Who do I call for an oven making a loud noise?
An appliance technician. Often a failing convection-fan motor or a worn cooling-fan bearing. Send them the video with the sound: it shows them where to start. The Triage Profile names who to call for your photo.
What do I tell the resident right now?
Thanks for telling me about the noise from the oven. Please switch the oven off at the breaker and leave it off for now: a loud noise usually means a part is rubbing or has come loose, and running it makes the repair bigger. If there's a burning smell with it, tell me straight away. If you smell gas, leave the home now, leave every switch as it is, and call the gas utility from outside, then call me. Send me a short video with the sound and a photo of the oven, and I'll get an appliance technician out.
Why does my LG oven make noise only when preheating?
This often points to the convection fan, which typically engages during preheating to circulate hot air evenly. As the fan motor bearings wear out or the blade becomes loose, it creates noise when spinning up to speed.
Can I use my LG oven if it's making a loud noise?
While it might still function, it's generally not recommended to continue using an oven making loud, unusual noises.
Related problems
More LG oven problems
Another symptom on the same oven.
Making a loud noise: other brands
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