Water damage - LG Dishwasher LDS4821 – Error Codes – Wiring diagram

  To lock/unlock the buttons, press QUICK and RINSE ONLY simultaneously for 3 seconds. When CHILD LOCK is set, all buttons are disabled.

  To cancel a running cycle, open the door, then press and hold the POWER SCRUB and NORMAL buttons together for 3 seconds. The drain pump will be activated and the cycle will be canceled.

  Pressing the POWER button turns on power to the control.  After the cycle is complete, the power automatically switches off after 4 minutes for safety and economy.  If there is an unusual Power surge or disturbance, the power will be automatically turned off for safety and the cycle will have to be started over.

Wiring Diagram

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ERROR MESSAGES

1E display => INLET ERROR: Not reached to the normal water level in spite of 10 min. water supply. 

The Water Supply Tap is closed.

The Water Supply is shut off.
The Inlet Hose is kinked.
The Water Pressure is very low. (below 10 psi)
Inlet Valve is OK?
The filter of Inlet Valve is clogged by impure water.
The Hall sensor is OK?
The Impeller of Air Guide is bound.

Take action on Water Supply device.
Measure the electric resistance of Inlet Valve. (950-1300 )
Clean the filter of Inlet Valve.
Check the frequency of Inlet Water by the Test Mode.
Replace the Air Braker.

0E display => DRAIN ERROR: Not fully drained out in spite of 5 min. drain operation.

The Drain Hose kinked or blocked.
Wiring connection is OK?
The drain outlet of sump is blocked.
The Drain Pump/Motor or circuit is troubled.

Remove the cause of kink or block.
Check the wiring connection.
Measure the electric resistance of Drain Motor. (20-40 )
Replace the Drain Motor or repair the Circuit.

E1 display => LEAKAGE ERROR: The excessive RPM of Washing Motor happened during Wash cycle due to water leakage.

Water leakage in Hose connections.
Water is leaked by damages.
The Motor Water Seal leakage of Sump assembly.
The height of Drain Hose connection (sink-Drain Hose) is not over 20″.
Impeller of the Washing Pump is worn away.

Replace the connections of Hose.
Check the point of damages and repair or replace the related parts.
Read the Installation Instructions  and fix it to the recommended Height.
Replace the Impeller of the Washing Pump.

FE display => EXCESS ERROR: Excessive water is supplied than normal water level.(Automatically drain Pump operated.)

The Inlet Valve is troubled.
The Controller is troubled.

Replace the Inlet Valve.
Repair or replace the Controller.

tE display => THERMAL ERROR: The resistance of thermistor not normally out put.

The Inlet Water Temperature is very high. (over 194 )
Wiring connection is OK?
The Thermistor is OK?

Check the temperature. (Test Mode). 

If the temperature is displayed, adjust the Inlet Water Temperature to 120.

If the temperature is not displayed, check the wiring connection.  Check the electric resistance of Thermistor. (11~14k at 77 )

Replace the PCB.

LE display => MOTOR ERROR: The Motor is working abnormally.

Wiring connection is OK?
The Impeller of Washing Pump is locked.
The rotor of Washing Motor is locked.
The Blade is locked.

Check the wiring connection.
Replace the cause of restriction.
Replace the Washing Motor.
Replace the PCB.

Test Mode LDS4821 Series dishwashers