Question 1

the interior light stays on all the time even with the door closed, how do i turn it off?

Accepted Answer

DIAGNOSIS The LED interior light is supposed to turn off automatically when the door is latched. If it stays on, the door switch that detects the latch is stuck in the "on" position or has failed. FIX Try firmly opening and closing the door a few times. Sometimes the switch actuator gets stuck. Listen for the click of the switch when the door latches. If you're handy, you can access the switch by removing the inner door panel and checking for a jammed mechanism or broken plastic actuator. IF THAT DIDN'T WORK The switch itself is likely faulty and needs to be replaced. It's a common microswitch part. You'll need to disconnect power, remove the door panel, and swap the old switch for a new one. HEADS UP Having that light on 24/7 won't hurt the dishwasher's operation, but it will slightly increase your energy bill and the LED could eventually burn out prematurely. It's more of an annoyance than a critical failure.

Question 2

the smartthinq app won’t connect to my lg dishwasher, it just keeps searching forever.

Accepted Answer

DIAGNOSIS This is almost always a Wi-Fi setup issue. The dishwasher's wireless module is finicky and needs a 2.4 GHz network signal (not 5GHz) and a strong signal from your router. FIX First, reset the dishwasher's network. Press and hold the Wi-Fi button on the control panel for 3 seconds until it beeps. Then, in the LG SmartThinQ app, delete the dishwasher and start the "add device" process from scratch. Make sure your phone is connected to your 2.4 GHz Wi-Fi band during setup. IF THAT DIDN'T WORK Your router might be using a setting that the dishwasher doesn't like, like WPA3 security or a hidden SSID. Temporarily switch your 2.4 GHz band to WPA2 security and make sure the SSID is broadcast. Try the setup again. HEADS UP The dishwasher's Wi-Fi antenna isn't super powerful. If your router is far away or through several walls, the connection will be flaky even if it initially pairs. A weak signal will cause it to drop off the network constantly.

Question 3

it’s making a loud grinding or buzzing noise, mostly during the drain part of the cycle.

Accepted Answer

DIAGNOSIS A grinding noise during draining is classic for something hard—a piece of bone, glass, or a cherry pit—making its way into the drain pump impeller. FIX Immediately stop the cycle. You'll need to access the drain pump. Remove the lower filter assembly. Then, lying on your back under the open door, you'll see the drain pump cover (a round plastic cover) at the front bottom of the tub. Remove the cover (may have screws or a quarter-turn lock) and feel inside the impeller area for the foreign object. Remove it. IF THAT DIDN'T WORK If the noise persists after clearing the impeller, the pump motor bearings might be worn out or the impeller itself could be cracked. That means replacing the entire drain pump assembly. HEADS UP That noise is the sound of metal or hard plastic chewing itself up. Letting it continue will almost certainly destroy the pump, leading to a full replacement instead of a simple debris removal.

Question 4

the control panel on my ldp6810ss is totally dead, no lights or response.

Accepted Answer

DIAGNOSIS A completely dead control panel usually points to a power supply issue, not a failed touchpad. It's likely a tripped thermal fuse on the main control board or a problem with the incoming power. FIX First, check your home's circuit breaker or GFCI outlet that the dishwasher is plugged into. Reset it. Then, ensure the dishwasher's power cord is firmly plugged into the outlet (it's usually under the sink). IF THAT DIDN'T WORK The issue is internal. On this model, a common failure point is the thermal fuse on the main control board blowing due to a short or overheating. This requires a multimeter to test and a repair kit to replace—it's not a user-serviceable part. HEADS UP If you're handy and open it up, always disconnect power at the breaker first. Messing with the main board with live power is a great way to fry the board completely or give yourself a nasty shock.

Question 5

my dishes are coming out with white chalky film or spots, especially on glasses.

Accepted Answer

DIAGNOSIS That's hard water residue. While this model has a built-in water softener, it needs to be regenerated with special salt, and you might be using the wrong detergent or not enough of it. FIX First, fill the salt compartment in the bottom of the tub (under the lower rack) with dishwasher salt, not table salt. Then, run a Sani Rinse or Clean cycle to let it regenerate. For detergent, use a good quality powder or gel, and make sure you're filling both the main wash and pre-wash compartments in the dispenser. IF THAT DIDN'T WORK Your water might be exceptionally hard. Check that the built-in softener's hardness setting is configured correctly for your area via the wash cycle buttons (hold Soil and Power for 3 seconds to enter settings mode). has the chart. HEADS UP Don't use "all-in-one" pods or tablets if you have hard water and are using the built-in softener. They contain their own softeners that can overdose the system and leave a different kind of film. Stick to separate detergent and rinse aid.

Question 6

the quadwash arms in my lg dishwasher aren’t spinning at all during the cycle.

Accepted Answer

DIAGNOSIS Spinning spray arms need clear nozzles and unobstructed movement. If they're stuck, it's usually because a tall item (like a utensil or tall cup) has popped up through the rack and is physically blocking the arm's rotation. FIX Open the door mid-cycle (it'll pause) and visually check all spray arms. Manually spin each one. If an arm is blocked, remove the offending item from the rack. Also, check that the lower rack wheels are fully on the track and the rack isn't sagging and hitting the arms. IF THAT DIDN'T WORK Pop off the spray arms (they usually twist or clip on) and look inside the mounting posts for food debris. Also, run a toothpick or pin through all the spray holes to clear any mineral buildup or bits of plastic from packaging that might have been left inside. HEADS UP Forcing a spray arm that's being blocked can crack the plastic mount or strip the gear in the motor assembly. Always clear the blockage before trying to manually spin it hard.

Question 7

water just sits in the bottom of my lg dishwasher after a cycle, it won’t drain.

Accepted Answer

DIAGNOSIS A non-draining LG dishwasher is almost always a clog in the drain system. The most common culprit is food debris stuck in the filter assembly or the drain hose. FIX Start by removing the bottom rack and unscrewing the cylindrical filter in the center of the tub floor. Pull it apart—there's a coarse filter and a fine filter. Rinse all pieces under hot water, scrubbing away any sludge. Check the exposed drain area for large debris. Reassemble tightly. IF THAT DIDN'T WORK The next spot to check is where the drain hose connects to the garbage disposal or sink drain under the sink. Disconnect it (have a towel ready) and check for a kink or blockage. Also, if you have an air gap device for your sink, it might be clogged. HEADS UP Never run a cycle with the filter removed or loosely assembled. It protects the pump from damage, and a bad seal can cause leaks. And yeah, you gotta clean that filter way more often than you think.

Question 8

my lg ldp6810ss dishwasher just beeps three times and won’t start a cycle, what’s the deal?

Accepted Answer

DIAGNOSIS The dishwasher is failing its initial door seal check. The three-beep error, usually with the "door" LED lit, means it thinks the door is open or not latched securely, even if it looks closed to you. FIX First, open and then firmly re-close the door. Listen for a distinct click. If that doesn't work, inspect the door latch area and the metal strike plate on the tub frame for any food debris or a small piece of broken plastic. Clean it out with a damp cloth. A crumb in the wrong spot can stop the latch from fully engaging. IF THAT DIDN'T WORK The door switch itself might be faulty. You can test this by carefully pressing the switch mechanism (located behind the door latch) with the handle of a screwdriver while the door is open. If it starts, the switch is bad and needs replacing. HEADS UP Don't just keep slamming the door. If the latch or strike plate is misaligned from an impact, forcing it can break the plastic housing, which is a much more expensive fix than cleaning out a bit of gunk.

LG LDP6810SS QuadWash Dishwasher

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