Question 1

there's a burning smell coming from my lg dryer, not like lint, more like hot plastic or rubber.

Accepted Answer

DIAGNOSIS A hot plastic or rubber smell, especially if it's new or sudden, often points to a mechanical part overheating due to friction. The prime suspects are the drum support rollers, the idler pulley, or the drive belt rubbing somewhere it shouldn't. FIX Stop using the dryer immediately and unplug it. 1) Remove the lint filter and check the very back of the cavity for any melted plastic debris. 2) You'll need to access the drum area. This involves removing the top and front panels (unplugged!). Visually inspect the belt for signs of glazing, fraying, or if it's jumped off its track. 3) Manually spin the drum. It should turn smoothly and quietly. Any grinding, squealing, or rough spots indicate a seized roller or worn glides. IF THAT DIDN'T WORK The smell could be coming from the motor itself or its wiring if it's overheating. This is less common but serious. Look for discolored or melted wire insulation near the motor housing. HEADS UP This is not a "run it and see if it goes away" situation. Continued use with a failing mechanical part can lead to a seized drum, a broken belt, or in worst cases, an electrical fire. If you're not comfortable with disassembly, call a pro—diagnosing this requires a hands-on look inside the cabinet.

Question 2

the control panel on my dlex7900we is totally dead, no lights, nothing. but i hear a click when i press power.

Accepted Answer

DIAGNOSIS You have power getting to the main control board (that's the click you hear), but the board itself isn't booting up or sending power to the display and buttons. This can be from a failed board or, more hopefully, a loose connection. FIX First, do a hard reset. 1) Unplug the dryer from the wall outlet. Don't just turn off a switch—physically pull the plug. 2) Wait a full 5 minutes. This allows any residual power in the capacitors to drain, which can sometimes reset a locked-up board. 3) Plug it firmly back in and try powering it on. IF THAT DIDN'T WORK The problem is likely internal. Check your home's circuit breaker/fuse for the dryer to ensure it hasn't partially tripped. If power is confirmed, the main control board or the smaller UI (user interface) board behind the display may have failed and needs replacement. HEADS UP Control board issues are not a DIY fix for most folks. That click means high-voltage parts are engaging, so working inside the machine while plugged in is extremely dangerous. If the hard reset fails, you'll likely need a technician to diagnose which board is faulty.

Question 3

my lg dryer is taking forever to dry a normal load, like over two hours. it's not throwing an error.

Accepted Answer

DIAGNOSIS Extended dry times are almost always a heat flow problem. The dryer is working, but not getting hot enough, or the hot, moist air isn't escaping efficiently. FIX Run through this checklist. 1) Clean the lint filter thoroughly—a nearly invisible film can restrict airflow. 2) Check the external vent flap outside your house. Go outside while the dryer is running and make sure the flap opens strongly and you feel a robust blast of warm, moist air. If it's weak or the flap barely moves, you have a vent blockage (see the OE fix above). 3) Make sure you're not overloading the dryer. Clothes need room to tumble for proper drying. IF THAT DIDN'T WORK The heating element or one of its associated components (thermal fuse, thermostat) might be faulty. This is less common than a vent issue, but if your vent is clear and airflow is strong, a lack of heat points to an internal electrical repair. HEADS UP Running a dryer for hours on end with a restricted vent is a major fire risk and wastes significant energy. Don't just keep restarting it. Diagnose the airflow first—it's the cause 90% of the time.

Question 4

how do i clean the moisture sensor strips in my lg dryer? my clothes are still damp saying it's done.

Accepted Answer

DIAGNOSIS The dryer is using its timed cycle, not the "Auto Dry" sensing, because the sensor strips inside the drum are coated with fabric softener residue or lint. They can't detect moisture properly. FIX You don't need any special cleaners. 1) Unplug the dryer. 2) Locate the two metal sensor strips. They look like thin, vertical bars running front-to-back on the inside top of the drum. 3) Use a soft cloth (an old t-shirt works great) dampened with a little rubbing alcohol or just warm water. Gently but firmly rub the strips until they shine and feel smooth, not slick or sticky. 4) Dry them completely with another cloth before plugging the dryer back in. IF THAT DIDN'T WORK If cleaning doesn't fix it, you might have accidentally been using a timed dry cycle. Make sure you're selecting a cycle like "Cotton" and then pressing the "Sensor Dry" button until the desired dryness level (e.g., "More Dry," "Normal," "Less Dry") is lit up. HEADS UP To prevent this, cut back on liquid fabric softener or use dryer sheets sparingly. Wipe down the sensors every few months as part of regular maintenance. Also, ensure you're not overloading the dryer—a packed drum prevents clothes from tumbling past the sensors.

Question 5

the wifi on my lg smart dryer keeps disconnecting and i can't control it from my phone anymore.

Accepted Answer

DIAGNOSIS This is a frequent headache with smart appliances. The dryer's Wi-Fi module has a weak signal or can't maintain a stable connection to your home network, often due to router settings or distance. FIX Start with a reset on the dryer side. 1) Press and hold the Wi-Fi button on the dryer's control panel for about 3 seconds until the icon blinks, which puts it back into pairing mode. 2) On your phone, go into the LG ThinQ app, remove the dryer from your device list, and re-add it as if it were new. Make sure your phone is on the same 2.4 GHz Wi-Fi network (these dryers usually don't support 5 GHz). 3) During setup, ensure the dryer is physically as close to your router as possible, even if temporarily. IF THAT DIDN'T WORK The issue might be your router. Try rebooting it. Some routers have a "Smart Connect" feature that bands devices between 2.4 and 5 GHz; try turning that off and connecting the dryer to a dedicated 2.4 GHz SSID. HEADS UP The dryer's Wi-Fi antenna isn't powerful. If your laundry room is far from the router, you might need a Wi-Fi extender. Also, know that connectivity issues rarely affect the dryer's core functions—it'll still dry clothes just fine from the physical panel.

Question 6

lg dryer dlex7900we just beeps three times and won't turn on when i press start, what gives?

Accepted Answer

DIAGNOSIS The three-beep error usually means the door isn't being sensed as fully closed, even if it looks shut. The door latch or sensor isn't engaging. FIX First, check the obvious. 1) Open and firmly re-close the door. Listen for a distinct click. 2) Inspect the door latch itself (the hook on the door) and the strike plate (the part it catches on the dryer body) for any damage, lint buildup, or obstructions. Clean both with a dry cloth. 3) Look at the door seal (gasket) around the opening. If it's bunched up, folded, or has a tear, it can block the door from seating fully. IF THAT DIDN'T WORK The door switch, a small electrical component behind the front panel that gets pressed when the latch engages, might have failed. You can test it with a multimeter for continuity, but replacing it requires unplugging the dryer and removing the top and front panels. HEADS UP Never try to bypass or tape down the door switch to make it run. That safety feature is there to stop the drum immediately when the door opens. A faulty switch is a straightforward and relatively inexpensive fix.

Question 7

why is my smart lg dryer so loud? it makes a loud thumping or banging noise during the cycle.

Accepted Answer

DIAGNOSIS That rhythmic thumping is almost always a foreign object—like a coin, button, or hairpin—loose in the drum or caught in the blower wheel area. It gets tossed around during the spin. FIX Unplug the dryer. 1) Remove the lint filter and check its housing cavity with a flashlight; small items fall in there all the time. Use needle-nose pliers to fish anything out. 2) Manually spin the drum by hand and listen for the object rattling inside. Tilt the dryer back (get help, it's heavy) and look under the drum through the lower access panel if possible. 3) For a more thorough search, you can remove the front panel (requires a screwdriver) to access the front of the drum seal. IF THAT DIDN'T WORK The noise could be from a worn drum support roller or glider. If it's more of a squealing or grinding than a thump, and happens even with an empty drum, one of these plastic or rubber parts is likely worn out and needs replacement. HEADS UP Don't ignore a persistent banging. A hard object can eventually crack the baffles (the lifters inside the drum) or damage the drum finish. Always check pockets before loading, and consider using a laundry bag for small, delicate items.

Question 8

my lg dlex7900we dryer keeps showing OE error and won't start a cycle, what's wrong?

Accepted Answer

DIAGNOSIS Your dryer is sensing a restriction in the exhaust vent system, which is a common and often easily fixed issue. The OE code means it can't push air out fast enough, so it shuts down to prevent overheating. FIX First, unplug the dryer for safety. 1) Check the lint filter and give it a good clean—sometimes a film builds up that you can't see. 2) Go to the back of the dryer, disconnect the vent hose from the wall, and look for a bird's nest or major lint clump right at the outlet. 3) The main culprit is often the vent run itself. You'll need to disconnect the hose from the dryer and wall, then use a vent cleaning brush or vacuum attachment to clear the entire length of the duct, from the dryer to the outside wall cap. IF THAT DIDN'T WORK The pressure sensor inside the dryer itself might be clogged. You'd need to remove the back panel (unplug first!) and carefully vacuum out the small tube that leads to the sensor. It's a thin plastic hose near the blower wheel. HEADS UP A recurring OE error isn't just an annoyance—it's a fire hazard because trapped lint can overheat. If the code keeps coming back after a thorough cleaning, you might have a crushed vent hose or an excessively long vent run that needs professional re-routing.

LG DLEX7900WE Smart WiFi Electric Dryer

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