Repairing your DLEX3900K LG Dryer is simple with official replacement parts made to fit your model. View a selection of popular parts, or review parts lists for each of the
DLEX3900K model diagrams below. Trust us to help you find the part you need and get your
DLEX3900K LG Dryer running again.
Most Popular DLEX3900K Parts
These are the most commonly purchased repair parts for DLEX3900K.
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The Dryer's Lint Filter is used to collect lint during the dryer cycle as it passes through the dryer vent, in order to prevent damage to the machine. This manufacturer-approved part comes in gray, measures around 12 inches wide by 11 inches high, and is easy to install. It slides into the lint filter slot in your dryer. If there is visible damage to the screen then it's time to replace the part. We recommend that you thoroughly clean the lint filter before every load, but even with good maintenance, this hard-working part is often damaged or worn over time. If your dryer isn't drying quickly, the filter may be responsible. The manufacturer has made an authorized substitution to the lint filter. Special details: When replacing lint screen ADQ56656401 you may need to also replace lint screen housing MCK49049101 and lint screen guide MEA49050001 to prevent items from catching on the lint screen, depending on your model.
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The drum support roller for your dryer holds the drum in place while the drum turns on the support wheels. The drum roller is round with a bearing in the middle and measures approximately 3 inches in diameter. If the dryer is noisy, won’t tumble, or takes too long to dry, you might need to replace the support roller. It is recommended that you replace both rollers at once. The bearing inside this roller is self-lubricating, so no grease will be required. Please remember to disconnect the power to your appliance before starting your repair. This is a genuine OEM part.
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The drive belt is made to wrap around the drum, working with the tension pulley to rotate the drum. If your dryer drum will not turn, then you may need to replace your belt. This drive belt is 1/4-inch wide with 4 ribs and 3 grooves. It is recommended to disconnect the power to your dryer before you start your repair. This drive belt is a genuine OEM part.
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The high limit thermostat protects the dryer by shutting off the heating element when the dryer overheats. If the thermostat has blown, dryer won’t start or there is no heat, the thermostat will need to be replaced it can not be reset. If your dryer vent is clogged it could cause the thermostat to blow as well. This is a genuine OEM part. Please remember to disconnect the power to the dryer before starting the repair.
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This is an authentic dryer lint filter cover sourced directly from the manufacturer. It protects the more delicate lint filter in your dryer, so that it doesn’t get damaged and lint can’t mix in with your clothes. This product is gray in color and is made of plastic. It is sold individually. The manufacture has modified the part and suggests replacing the filter guide also. Please see your specific model information to locate the filter guide.
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The moisture sensor, also known as a humidity sensor, works in conjunction with your dryer by helping determine the amount of moisture in the drum to reduce overdrying. If the timer doesn’t advance correctly, it is suggested to check the moisture sensor bar for damage. A damaged sensor can cause the automatic drying cycle to not work properly and will need to be replaced. This is a genuine OEM part. Please remember to disconnect the power to the dryer before starting this repair.