Question about LG Washing Machines
The 'LE' error message indicates the control board has detected that the motor is either not turning, or has locked up for some reason. Monitoring the motor is the job of the hall effect sensor board which constantly determines the direction and speed of the motor and feeds that information back to the control board. If there is a problem between what the motor should be doing and what the hall effect sensor says the motor is doing, the 'LE' will be displayed and the cycle will be stopped.
Motor lock can be caused by several things from a loose connector, to a bad motor, or even the hall effect sensor failing or dislodging from it's mount. Any one or more of these components could have caused this error, but it is possible to separate the working from the non-working, just by following a process. The reason this particular unit has been on the injured list for so long is the first tech never followed a trouble shooting process to ensure the parts being replaced had actually failed.
Fig. 01: LG front load motor circuit
It sounds like there is a problem with the hall effect sensor board as it sounds like you have replaced the rest of the components. Get to the main board, look for the hall sensor connector which should be a white connector with white, blue, red, and gray wires. Use a multimeter to measure between the white and gray with power on. You should read 10-15vdc, if not the board is bad. Then measure between the blue and gray wires while slowly rotating the motor. You should see a pulsing 10vdc and the same thing if you measure betwen red and gray. If you don't measure anything, then the wiring needs to be checked for an open circuit. If you measure less than 10vdc, or the voltage does not pulse as you rotate the motor, the sensor board is bad. You can also verify the wiring to the motor by measuring between any two wires on the red motor connector with blue, red, and yellow wires. You should read between 5 and 15 ohms between any two wires. If you measure an open circuit on any of them, then time to check the wiring harness for a broken wire, or a loose connection on either end.
The part number for the Hall Sensor is 6501KW2002A and it is the most likely cause of your problem. To search this and other replacement parts, visit this link appliancepartspros.com (with diagrams).
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Posted on Feb 07, 2012
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Posted on Jan 02, 2017
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Mar 18, 2015 | LG Washing Machines
code LE indicates that either the motor is not turning or has locked up for
some reason. It can also be due to Hall sensor which monitors direction and
speed of the motor. If the sensor is faulty then also this error appears. Motor
lock can be caused by several things from a loose connector, to a bad motor. To
make sure it's not a locked motor, try turning the drum with your hand. And, if
there is any resistance while turning the drum or the drum doesn't move freely
then the motor is locked and you'll need to get it replaced. If the motor seems
to be fine then you would need to replace the Hall Sensor. To replace the hall
sensor, take the back cover off. Take the big nut off and remove the motor
rotor. Remove the bolts holding the motor windings. Remove the electric plug on
the sensor and unclip it from the motor winding. Hope this
helps...please post back for further assistance.
Aug 08, 2011 | LG Washing Machines
Jul 23, 2011 | LG WM-2277HW Front Load Washer
Hello & Welcome to FixYa
LE error in your LG front load washer is displayed when either the motor is not working or the control board thinks that the motor is locked up. A Hall Effect sensor is used in these washers which monitors the speed and direction of the motor and then forwards this information to the control board. Hope you understand by now that this LE error is displayed when there is an issue with the motor or when the Hall Effect sensor sends wrong signal to the control. Conclusion is you'll have to check both motor and hall sensor and replace the part# that is bad, usually I have seen the sensor going bad. Please get back to me if you have any other questions.
Jun 14, 2011 | LG Washing Machines
Welcome to FixYa
LE error in your LG front load washer is displayed when either the motor is not working or the control board thinks that the motor is locked up. A Hall effect sensor is used in these washer which monitors the speed and direction of the motor and then forwards this information to the control board. Hope you understand by now that this LE error is displayed when their is an issue with the motor or when the hall effect sensor sends wrong signal to the control. Conclusion is you'll have to check both motor and hall sesor and replace the part# that is bad, usually I have seen the sensor going bad. Please get back to me if you have any other questions.
May 22, 2011 | LG WM-2277HW Front Load Washer
Mar 07, 2011 | LG WM-0532HW Front Load Washer
Feb 03, 2011 | LG WM1815CS Front Load Washer
Oct 22, 2009 | LG WM-2277HW Front Load Washer
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