On the LG LDP6810, Control Lock is switched on and off by holding two buttons: press and hold Half Load and Energy Saver at the same time for three seconds. While it is on, CL shows and every button except Power is locked, but it does not lock the door and it does not stop you switching the dishwasher off. LG says to deactivate it before you start a new cycle, so if the dishwasher seems dead but the display shows CL, that is all it is.
Differential
Likely causes of “LG dishwasher controls are locked or buttons do not respond”, and how to tell them apart
- 1
Control Lock was turned on by accident
What separates it CL shows and the buttons do nothing except Power
How to confirm Press and hold Half Load and Energy Saver together for three seconds
- 2
Pressing the wrong pair of buttons
What separates it Another function toggles, such as the chime, instead of Control Lock
How to confirm Chime uses Dual Zone and Energy Saver; Control Lock uses Half Load and Energy Saver
- 3
A different model layout
What separates it The buttons named do not exist on your control panel
How to confirm Check the model on the door edge; other LG dishwasher lines use different buttons
- 4
Trying to start a new cycle while locked
What separates it The dishwasher will not accept a new cycle because you are trying to start a new cycle while it is locked
How to confirm LG says to deactivate Control Lock before starting a new cycle
Before you touch a setting
Record this first — changing settings destroys the evidence
- Whether CL is showing on the display
- Which buttons you pressed and for how long
- The model number on the label on the door edge
Try in this order
0 of 5 completedLook for CL on the display
ReversibleLG says when Control Lock is on, CL is shown on the display and all buttons except Power are locked.
Hold the two buttons
ReversiblePress and hold Half Load and Energy Saver at the same time for three seconds. The same press toggles it on or off.
Confirm it is off
ReversibleThe remaining cycle time returns to the display when the lock is off. Then choose your cycle and options and press Start.
Do not confuse it with the chime buttons
ReversibleTo turn button sounds on or off, press and hold Dual Zone and Energy Saver for three seconds. The error alert sound cannot be turned off.
Check other settings
ReversibleRinse aid level is checked with Dual Zone and Power together and stepped with Delay Start; the Machine Clean icon is toggled by pressing Delicate for three seconds.
Model-specific
What is true of this model and not of its siblings
- Button combinations named in the manual
- Control Lock: Half Load + Energy Saver for 3 seconds. Chime on/off: Dual Zone + Energy Saver for 3 seconds. Rinse aid level: Dual Zone + Power, then Delay Start to step, then Start to save. Machine Clean icon: Delicate for 3 seconds. Wi-Fi connect: Delay Start for about 3 seconds.
- Parts for this problem on the LDP6810 (RepairClinic, 2026-09-21)
- pcb assembly,main, part number EBR86473411, at $347.31.
- Other models this page answers
- These steps also fit models LDP7808, LDPH7972, LDFN4542, LDFN3432, LDF5545, Signature Kitchen Suite SKSDW2401 dishwasher.
Stop boundary
When this stops being a self-service repair
- !If Control Lock will not turn off after three seconds with the right buttons, turn the dishwasher off at the breaker for a minute and try again
- !If buttons stay dead after a reset with no CL shown, call LG customer service
- !If the display is dark, see the not-starting page before assuming a lock
Evidence ledger
Sources behind this answer
LG USA support page listing this model's manuals and warranty.
Parts and list prices as shown on RepairClinic's parts search for this model number on 2026-09-21.
Exact questions
Common questions
How do I turn Control Lock on or off?+
Press and hold Half Load and Energy Saver simultaneously for three seconds.
Can I change settings while it is on?+
No. It locks all buttons except Power. To start a new cycle, deactivate Control Lock first.
Is Control Lock only for a running cycle?+
LG describes it as preventing the controls from being changed during the cycle, and you can turn it on while a cycle is running.
Why do different LG dishwashers use different buttons?+
Control layouts differ between lines. This manual covers the LDP681*** family; check your label if a button named here is missing.
Will turning the power off clear it?+
Do not count on a power cycle to clear Control Lock; use the two-button hold to be sure.