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I couldn’t find any error code 2H but I did find an error code H2O. This code means insufficient water pressure. If the display reads 2H, it usually means the start delay function is turned on. The dishwasher will turn on in 2 hours if door is closed. This dishwasher is advanced. To understand all operations you should read the user guide or manual.
Wiring connection is OK? The Impeller of Washing Pump is locked. The rotor of Washing Motor is locked. The Blade is locked.
Remedy:
Check the wiring connection. Replace the cause of restriction. Replace the Washing Motor. Replace the PCB.
Try the following steps:
Unplug the washing machine if you see an LE error on the two-digit display electronic readout. This error indicates a miscommunication between the control panel and wash motor.
Press and hold the "Start/Pause" button on the front panel for five seconds.
I just had my LG dishwasher fixed. I told the repair man that LE light was comming on. Even over the phone the repairman said its probably broken wires on the door. Me being in construction for years looked around the door for wires. Anyway the repairman took off 6 screws around the door, took the cover off. You will see about 50 wires taped together. He pulled them aside and visually checked them one by one. Sure enough two were broken in two. He twisted them together put tape and he was gone. $87.50 Still Working!
The LE code means there is a problem with the washer motor. ( Motor error ) Condition : The motor is working abnormally. Possible cause : Wiring connections. The impeller of washing pump is locked. The rotor of washing motor is locked. The blade is locked.
Remedy: Correct wiring connections. Replace the cause of restriction. Replace the washing motor. Replace the PCB.
The LE error code can mean that the impeller is damaged or there is some debris blocking the the sump area underneath the filter or the wash motor has failed. In that order.
Remove the spray arm and filter (9 phillips screws) - inspect impeller for damage, with flashlight, look everywhere for debris (watch out for broken glass!) Reassemble and test.
If problems continue, schedule as service call focused on the wash pump/motor.
Good Luck!
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