A long cycle on the LG LDP6810 is often not a fault: the display shows an ESTIMATED time that LG says does not include delays for heating water, and the real time varies with the soil level of the load. The manual also says hot inlet water of 120 to 149 F gives the best wash and the shortest cycle time, so cold water makes a cycle run long. If the dishwasher is far from the water heater, run the hot tap at the sink first. Extra Dry, High Temp and a Delay Start also change the time shown.
Differential
Likely causes of “LG dishwasher cycle takes too long”, and how to tell them apart
- 1
Cold inlet water that has to be heated
What separates it The cycle runs far longer than the display estimated and the wash starts late
How to confirm Run the hot tap at the sink first and check the water heater setting
- 2
A heavily soiled load
What separates it The estimated time is stretched and the cycle keeps extending
How to confirm Choose a cycle for the soil level; LG says cycle time varies with soil
- 3
Options that add time
What separates it You selected High Temp, Steam, Extra Dry or Night Dry
How to confirm Check which options are lit; LG says the total shown includes the options selected
- 4
A Delay Start setting
What separates it The display counts hours instead of the usual minutes
How to confirm Check whether Delay Start is on; LG says the display then shows the delay time in hours
Before you touch a setting
Record this first — changing settings destroys the evidence
- The cycle and options selected, and the time the display first showed
- How long the cycle actually took and whether it started with hot water
- Whether Delay Start was set and whether any code appeared
Try in this order
0 of 5 completedRead what the display is showing
ReversibleThe digital display shows the estimated cycle time, and LG says it does not include delay times for heating water. With Delay Start on, it shows the delay in hours.
Check the water temperature
ReversibleLG says a hot supply of 120 to 149 F gives the shortest cycle time. If the dishwasher is far from the water heater, run the hot tap in the sink before starting.
Check the options
ReversibleHigh Temp, Steam, Extra Dry and Night Dry each add time or heat. Turn off the ones you do not need for a normal load.
Choose the cycle for the load
ReversibleMatch the cycle to soil level and dishware. LG says cycle time may vary depending on the soil level of your load.
Clean the filters
ReversibleClogged filters slow washing and draining. Clean them and check for OE, since draining problems stretch a cycle.
Model-specific
What is true of this model and not of its siblings
- Time notes from the manual
- Estimated time excludes heating delays; hot inlet water of 120 to 149 F gives the shortest cycle; Delay Start shows hours; ENd shows at the end until the door is opened or Power is pressed; High Temp for three seconds sets ENd to turn off automatically.
- Parts for this problem on the LDP6810 (RepairClinic, 2026-09-21)
- circulation pump and motor assembly with heater, part number AGM30016301, at $95.94; thermistor & connector assembly, part number ACJ74110102, at $33.89; 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 the cycle runs more than twice the displayed time with hot water, no delay and no options, call LG customer service
- !If HE (heater circuit) or tE (water temperature sensor) shows, call LG since these are not user repairs
- !If the dishwasher never ends a cycle and keeps draining, call LG service
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
Why does my LG dishwasher take so long?+
The time on the display is an estimate that does not include delays for heating water, and cold inlet water, a heavy load or added options make it longer.
What water temperature gives the shortest cycle?+
LG says a hot supply of 120 to 149 F (49 to 65 C) gives the best washing results and shortest cycle time.
Does Delay Start change the display?+
Yes. If Delay Start is selected the display shows the delay time in hours.
Does the soil level change the time?+
Yes. LG says cycle time may vary depending on the soil level of your load.
What is the Auto cycle?+
The manual lists Auto among the cycles for which pre-rinsing is not needed, and it adjusts to the load.
Does the dishwasher tell me when it is done?+
Yes. A chime sounds and the display shows ENd until the door is opened or Power is pressed.