Owner Manual
55TROUBLESHOOTING
ENGLISH
Problem Possible Cause & Solution
Dishwasher chimes 
if panel is touched 
during operation.
Bumping into or touching the control panel during operation may result in a disabled 
button sound. Only the Power, Start, and Control Lock buttons are enabled during 
operation to prevent cycle settings from being changed inadvertently.
Button sounds can be turned off by pressing and holding Half Load for three seconds.
The end of cycle chime and safety alert sounds will still sound.
Dishwasher did not 
finish cycle.
Door was opened during cycle.
 If the door is opened during a cycle, the Start key must be pressed within 4 minutes or the 
machine turns off and all settings are lost.
Leaking in front of 
unit
Dishwasher not leveled properly.
Verify the unit is level from side to side and from front to back. See leveling instructions in 
the Installation section.
Wrong detergent used.
If excessive sudsing is causing the leak, allow the foam to subside for 24 hours then clean 
the inside of the tub with milk.
Your home 
appliance and 
smartphone is not 
connected to the 
Wi-Fi network.
The password for the Wi-Fi that you are trying to connect to is incorrect.
Find the Wi-Fi network connected to your smartphone and remove it, then register your 
appliance on LG ThinQ.
Mobile data for your smartphone is turned on.
Turn off the Mobile data of your smartphone and register the appliance using the Wi-Fi 
network.
The wireless network name (SSID) is set incorrectly.
The wireless network name (SSID) should be a combination of English letters and numbers. 
(Do not use special characters.)
The router frequency is not 2.4 GHz.
Only a 2.4 GHz router frequency is supported. Set the wireless router to 2.4 GHz and 
connect the appliance to the wireless router. To check the router frequency, check with your 
Internet service provider or the router manufacturer.
The distance between the appliance and the router is too far.
If the distance between the appliance and the router is too far, the signal may be weak and 
the connection may not be configured correctly. Move the location of the router so that it is 
closer to the appliance.
P1, P2, P3, or P4 
appears in display.
The Download cycle is selected.
This is not an error code. This code indicates the current Download cycle.
n:#, U:#, d:#, t# 
appearsin display. 
(# = a number)
Test mode is selected.
 This is not an error code. This code is used when testing the dishwasher. Power the unit off 
and on and the code will disappear.
L0, L1, L2, L3 or L4 
appears in display.
Rinse Aid Level setting mode is selected.
This is not an error code. This code indicates the current rinse aid level. For more 
information, refer to the Adding Cleaning Agents section.
CL appears in 
display.
Control Lock is activated.
This is not an error code. This code indicates that the control lock is activated. Press and 
hold Half Load and Energy Saver simultaneously for three seconds.










