LG dishwasher troubleshooting

LG dishwasher troubleshooting

The problems associated with operation of a dishwasher can often be eliminated by the owner himself. Many models have a built-in display, which shows an error code when any malfunction occurs. You can also find the cause of the problem in this troubleshooting table.

LG D1453WF dishwasher troubleshooting

The display shows PF codeThis indicates there was a power failure. This function protects the dishwasher in the event that the power goes out or the power to the unit is disrupted. When power is returned, and a button is pushed, this will display for 10 seconds and then go away.
The display shows Cd codeCd means Cool-dry. This is an additional drying cycle to assist drying performance. This cycle runs for a further 60 minutes after the course has finished. It can be interrupted at any time by opening the door.
The display shows CL codeCL means Child-Lock. This function is used to lock or unlock the control buttons to prevent all the settings from being changed by a child. It can only be activated during the wash cycle.
The display shows F codeWhen the unit is displaying F, the sensor is measuring the water clarity. After 5 minutes of sensing (except draining and filling), the unit's display will then show the processing time.
The display shows numbers between 1 ~ 19This is not an error code, but indicates the setting of the delay start. To cancel the function, turn the power off. To change the course and option, open the door and select another course and option. Countdown will then continue after door is closed again.
Buzzing sound. (High Temperature Alarm)This is not an error. When you open the door right after heating wash, rinse or dry, buzzing sound would keep on ringing for safety if the inside is heated.
OdorIf the dishwasher is not used daily, we recommend to run a Quick cycle once or twice a day until you have a full load.
In case odor still persists, run a vinegar rinse through a Auto cycle by putting 2cup(500ml) of white vinegar in an upright measuring cup in the lower rack, without detergent.

LG LDF7551ST dishwasher troubleshooting

ProblemPossible CausesSolutions
Dishwasher will not operateDoor is not completely closed.Make sure that the door is completely closed and latched.
Power supply or power cord is not connected.Connect the power supply or cord properly. Replace the fuse or reset the circuit breaker.
Fuse is blown or circuit breaker tripped.
Dishwasher operates too longDishwasher is connected to cold water.Check the water supply connection or water heater setting. (Heating cold water takes longer.)
OdorThe previous cycle was stopped before completion and residual water remains in the dishwasher.Turn on the power, run the Cancel cycle option to re- move the residual water, then run the Quick cycle using detergent but with the dishwasher empty.
There is food in the bottom of the unit or in the filter.Clean the filter and the interior
Unwashed dishes are left in the unit for a long time.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 cycleDrain hose is kinked or clogged.Adjust hose or clear blockage.
Spots and filming on dishesLow water temperature.Water supply should be at least 120F for best wash performance.
Wrong amount of detergent used.Use the recommended amount of detergent.
Overloading.Do not overload the dishwasher.
Improper loading. Insufficient water pressure.
Insufficient detergent.Water pressure should be between 20 and 120 psi.
Add the recommended amount of detergent.
Rinse aid dispenser is empty.Refill rinse aid dispenser.
Food soil remains on dishes.Dish washing detergent was not used. Low inlet water pressure.Use recommended detergent.
Water jet holes on spray arms blocked.Water pressure should be between 20 and 120 psi.
Improper loading of dishesClean the spray arms.
Filters are clogged.Make sure dishes do not block spray arm rotation or interfere with detergent dispenser.
Clean filters.
NoiseSome level of noise is normal during operation.Detergent cover opening.
The dishwasher is not level.Drain pump at the beginning of drain cycle.
Nozzle arm knocking against dishes.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.
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 ErrorWater inlet problem.Check for a clogged, kinked or frozen water inlet hose.
Check water supply.
OE ErrorDrainage Problem. Filters are clogged.Check for a clogged, kinked or frozen drain hose.
Clean Filters
FE ErrorExcessive Water supplied.Please call an Authorized Service Center or LGE Customer Service
E1 or AE ErrorWater leakage problem.
HE ErrorHeater circuit failure.
TE ErrorThermistor failure or very high inlet water temperature (over 194F)
LE ErrorMotor Trouble

LG LDS4821ST dishwasher troubleshooting

ProblemPossible CausesSolution
No lights come on when the power is turned on.• Plug is not properly inserted into the socket.• Check the plug.
• Fuses blown or circuit breaker tripped.• Check the electricity.
• The electricity of the house was cut off.• Call for service.
The machine does not start.• Door is not fully closed.• Close the door.
• The start button is not pressed.• Press the start button.
The spray arms do not rotate smoothly.• The mounting of the spray arms is blocked by food particles.• Clean the holes of the spray arm.
White deposits are left on the dishwasher after washing.• The amount of detergent or rinse- aid set incorrectly.• Check the detergent or rinse-aid.
• The salt container is empty.• Check the salt container or cap.
• The salt container cap is not securely screwed on.
Streaks are left on glassware.• Too little Rinse-Aid dispensed.• Fill the rinse-aid.
Dry results are not satisfactory.• Too little Rinse-Aid dispensed.• Adjust the level of rinse-aid container.
Washing results are not satisfactory.• Incorrect amount of detergent.
• Utensils incorrectly arranged or overloaded.
• Filters are clogged.
• Water jet holes of spray arms blocked.
• Spray arm's rotation obstructed by utensils.
• Unsuitable program selected.
The display shows "OE" code. (Water is not pumped away.)• The drain hose is kinked.• Straighten hose(s).
• The filter is clogged.• Clean the filter.
• Motor trouble. (Washing motor or Drain motor)• If you can not solve the problem, call for service.
The display shows "IE" code.• Water is not supplied.• Check the water tap.
• Water tap is not opened.• If you can not solve the problem, call for service.
• Water sensor has a trouble.
The display shows "El" code. (Automatically Drain pump operated.)• Water is leaking from the hose connections.• Close the water tap and unplug the power plug.
• Damage to the unit has been caused by a water leak.• Call for service.
The display shows "FE" code. (Automatically Drain pump operated.)• Excessive water is supplied than the normal water level.
• There is a problem with the inlet valve.
The display shows "HE" code.• The water heater circuit is damaged.
The display shows "tE" code.• Thermistor trouble or very high inlet water temperature.
The display shows "LE" code.• Motor trouble.
The display shows "CE" code.