LG LDF8874ST, LDF8764ST Troubleshooting Manual

TROUBLESHOOTING

BEFORE CALLING FOR SERVICE

Problem	Possible Causes	Solutions
Dishwasher will not operate	Door is not completely closed. Power supply or power cord is not connected. Fuse is blown or circuit breaker tripped.	Make sure that the door is completely closed and latched. Connect the power supply or cord properly. Replace the fuse or reset the circuit breaker.
Dishwasher operates too long	Dishwasher is connected to cold water.	Check the water supply connection or water heater setting. (Heating cold water takes longer.)
Odor	The previous cycle was stopped before completion and residual water remains in the dishwasher. There is food in the bottom of the unit or in the filter. Unwashed dishes are left in the unit for a long time.	Turn on the power, run the Cancel cycle option to remove the residual water, then run the Quick cycle using detergent but with the dishwasher empty. Clean the filter and the interior according to the "Care and Cleaning" section of the owner's manual. Run an empty cycle with detergent, or run an empty cycle with one cup of white vinegar in a dishwasher safe glass or bowl placed on the upper rack. (Vinegar is an acid, and with constant use it could damage your appliance.)
Water remains in tub after completion of cycle	Drain hose is kinked or clogged.	Adjust hose or clear blockage.
Spots and filming on dishes	Low water temperature. Wrong amount of detergent used.	Water supply should be at least 120°F for best wash performance. Use the recommended amount of detergent.
	Overloading.	Do not overload the dishwasher.
	Improper loading. Insufficient water pressure. Insufficient detergent.	See the Using Your Dishwasher section. Water pressure should be between 20 and 120 psi. Add the recommended amount of detergent. See the Using Your Dishwasher section.
	Rinse aid dispenser is empty.	Refill rinse aid dispenser.
	Extremely hard water The best way to eliminate spots on your dishes is to install a whole house water softener in your home. If a water softener is already installed or you do not plan on installing one, try adding the "Extra Rinse" option as part of the wash cycle to help minimize this condition. To add an extra rinse to the cycle, select the wash cycle and then press the RINSE button. NOTE: Selecting "Extra Rinse" will increase cycle times and water usage. To remove hard water build up in the tub Remove all dishes, silverware and the silverware holder from the dishwasher. Only the racks should remain in the tub. Fill a measuring cup with white vinegar, approximately 14~17 ounces (400~500mL), and place the measuring cup in the lower rack. Run a Normal cycle and select Extra Rinse and Sanitary then close the door. DO NOT USE DETERGENT NOTE: Make sure to let the dishwasher complete the entire cycle. This cleaning method should only be done as needed.
Food soil remains on dishes	Improper cycle selection. Water temperature too low. Dish washing detergent was not used. Low inlet water pressure. Water jet holes on spray arms blocked. Improper loading of dishes Filters are clogged.	Select correct cycle based on soil level and type of dishware being washed. Check water supply connection or water heater setting. Use recommended detergent. Water pressure should be between 20 and 120 psi. Clean the spray arms. Make sure dishes do not block spray arm rotation or interfere with detergent dispenser. Clean filters.
Noise	Some level of noise is normal during operation. The dishwasher is not level. Nozzle arm knocking against dishes.	Detergent cover opening. Drain pump at the beginning of drain cycle. Adjust leveling feet. Reposition the dishes.
Cloudiness on glassware	Combination of excessive detergent and soft water.	Use less detergent and use a rinse aid to minimize the problem.
Black or gray marks on dishes	Aluminum items rubbing dishes during cycle.	Reposition the dishes.
Yellow or brown film on inside of surfaces of dishwasher.	Coffee or tea stains.	Eliminate the stain by using a stain removal product.
Dishes don't dry	Rinse agent dispenser empty.	Check and refill the rinse agent dispenser if empty.
Lamps do not illuminate	Power is not connected.	Connect power supply.
Sprays arms do not rotate smoothly	Holes of spray arms are blocked by food particles.	Clean the holes of spray arms.
Upper rack is crooked	Rack is poorly adjusted.	See the Height Adjustable Upper Rack section.
Dishwasher continuously beeps when the door is opened, during or right after a cycle has completed.	The contents of the dishwasher are hot and care should be used when placing your hands inside the dishwasher.	Close the door until the dishwasher and dishes have cooled down. The beeping will go away if the door is closed or the interior temperature has been cooled.
IE Error	Water inlet problem.	Check for a clogged, kinked or frozen water inlet hose. Check water supply.
OE Error	Drainage Problem. Filters are clogged.	Check for a clogged, kinked or frozen drain hose. Clean Filters
FE Error	Excessive Water supplied.	Please call an Authorized Service Center or LGE Customer Service at 1-800-243-0000 (US) 1-888-542-2623 (Canada)
E1 or AE Error	Water leakage problem.
HE Error	Heater circuit failure.
TE Error	Thermistor failure or very high inlet water temperature (over 1940F)
LE Error	Motor Trouble

If you have followed this troubleshooting guide and the problem persists, or if the problem you are experiencing is not listed here, please call LGE Customer Service at 1-800-243-0000(US), 1-888-542-2623(Canada).