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HomeRepair HelpLG Oven RepairLG Range making a loud noise Repair
LG Range making a loud noise
If your LG range is making a loud noise, the source is usually a damaged fan blade, especially when you hear oven fan noise, rattling, or scraping during operation. A bent blade can slide on the shaft and rub against the housing, so inspect it for damage or an uneven fit. On a gas LG range, a faulty spark ignition switch or spark ignition switch and harness can cause gas to ignite late, creating a sudden "whoosh" or flash noise. Test the switch for electrical continuity with a multimeter. A worn fan motor is another common cause of oven making noise, particularly if its bearings are failing or the blower is damaged. A weak oven igniter can also allow gas to build up before ignition, causing a small boom in the oven or a whoosh at the burner. If it glows for more than 90 seconds without lighting the flame, it may need replacement. Finally, a failing convection motor can rattle, hum, or let the fan hit the housing. Enter your LG range model number to find the exact fan blade, fan motor, igniter, spark switch, harness, or convection motor for your appliance.
01 - LG Range/Stove/Oven Fan Blade
The fan blade may be bent or sliding on the shaft and rubbing on the housing. Inspect the fan blade. If the fan blade is bent or damaged it will need to be replaced.
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02 - LG Range/Stove/Oven Spark Ignition Switch
If the gas is not lighting correctly, it can build up and flash, causing a “whoosh” noise on the burner. This can potentially be caused by a faulty spark ignition switch only working intermittently. You can use a multimeter to test the spark ignition switch or switches for electrical continuity to determine if the component is functioning normally.
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03 - LG Range/Stove/Oven Spark Ignition Switch and Harness
If the gas is not lighting correctly, it can build up and flash, causing a “whoosh” noise on the burner. This can potentially be caused by a faulty spark ignition switch and harness only working intermittently. You can use a multimeter to test the spark ignition switches for electrical continuity to determine if the assembly is functioning normally.
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04 - LG Range/Stove/Oven Fan Motor
The fan motor turns the fan blade to circulate the air. The fan motor is often sold as an assembly. If the fan motor bearings are bad, or the fan blade or blower is damaged, the fan motor will need to be replaced.
Highly Likely
05 - LG Range/Stove/Oven Igniter
If the gas is not being ignited promptly, it can build up and flash causing a small "boom" noise in the oven or a "whoosh" noise on the burner. A faulty igniter could be the cause of the gas not igniting promptly. To determine if the igniter is defective, observe the igniter when the oven is on. If the igniter glows for more than 90 seconds without igniting the gas flame, this indicates that the igniter is too weak to open the valve. If the igniter is weak, replace it. If the igniter does not glow at all, use a multimeter to test the igniter for continuity. If the igniter does not have continuity, replace it.
Highly Likely
06 - LG Range/Stove/Oven Convection Motor
The convection motor drives the convection fan to circulate the air inside the oven. The convection oven must circulate the air for the oven to heat evenly. If the motor bearings are bad the motor may rattle or the fan may hit the housing. If the convection fan motor shaft wobbles, or the motor is making a loud noise, replace the convection motor.
Common
Frequently Asked Questions
Why is my LG range making a loud noise?
How do I fix an LG oven fan making noise?
Why does my LG gas range make a whoosh or boom when it lights?
How can I test an LG oven igniter or spark ignition switch?
How do I find the correct replacement part for my LG range?
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