Main drive motor does not operate.

Your LG washing machine's motor is controlled by the main circuit board. This is the brain of your washing machine. Depending on the selected program and which cycle is currently running, the PCB will tell the motor which speed to run at and which direction to turn. The Hall Effect sensor on the main circuit board is fed operational feedback from the motor. If there is any difference between what the motor should be doing and what it is actually doing - the appliance will stop operating and display an "LE" error.
For example: if the main circuit board tells the motor to rotate clockwise at a certain speed and the motor doesn't start, the monitoring sensor will relay this inactivity to the main PCB and a "LE" error will persist. The same error would be displayed if the motor rotates in the wrong direction or runs at the wrong speed. It should be evident there are many faults that could produce the "LE" error code. Failure of one of the major components or a fault in the monitoring and feedback loop, could all lead to this problem. It is true however, some faults occur more regularly than others. Test for the most common causes of failure, eliminate them, and move on to more unlikely faults.
Many causes for the "LE" error are thought to stem from LG's manufacturing process. Many customers found the wiring damaged or completely severed in their washing machine's motor drive and feedback loop. If the wires were installed too close to a moving part, they may be vulnerable to mechanical wear once the machine starts to operate. A washing machine vibrates a lot during a spinning cycle, so it is conceivable wires could be damaged in this way. Check the cables feeding the motor for any obvious signs of damage. If you cannot see any problem, disconnect those wires and check for conductivity with a multi-meter. There should be almost no resistance detected in the wire.
If you find a damaged wire, replace it and ensure the new wire is well out of the way of any moving parts. If the wire is faultless you will have to move on and continue fault finding. Try and turn the motor's rotor by hand, if there is any real friction or if the rotor is seized - you will have to replace the motor. Faultless wiring and a washing machine motor - with the existence of an "LE" error code, indicates a fault in the main system board. It should be noted though; this is unlikely to be the cause of the problem. Almost all "LE" errors indicate faulty wiring - so ensure you have properly checked this before installing a new PCB.
Here is a link to the PCB board.
Pcb Assembly display

Your question was head "microwave ovens" but I think you are talking about a washing machine.

Replacing the motor is a matter of judgement as to the reliability of the machine generally.

If this is the first time the machine has failed in 6 years, then I would have the motor replaced.

If there have been a series of faults, then replace then machine.

(Incidentally I assume that you checked the drive belt).

Your LG washing machine’s motor is controlled by the main circuit board. This is the brain of your washing machine. Depending on the selected program and which cycle is currently running, the PCB will tell the motor which speed to run at and which direction to turn. The Hall Effect sensor on the main circuit board is fed operational feedback from the motor. If there is any difference between what the motor should be doing and what it is actually doing – the appliance will stop operating and display an “LE” error. For example: if the main circuit board tells the motor to rotate clockwise at a certain speed and the motor doesn’t start, the monitoring sensor will relay this inactivity to the main PCB and a “LE” error will persist. The same error would be displayed if the motor rotates in the wrong direction or runs at the wrong speed. It should be evident there are many faults that could produce the “LE” error code. Failure of one of the major components or a fault in the monitoring and feedback loop, could all lead to this problem. It is true however, some faults occur more regularly than others. Test for the most common causes of failure, eliminate them, and move on to more unlikely faults.
Many causes for the “LE” error are thought to stem from LG’s manufacturing process. Many customers found the wiring damaged or completely severed in their washing machine’s motor drive and feedback loop. If the wires were installed too close to a moving part, they may be vulnerable to mechanical wear once the machine starts to operate. A washing machine vibrates a lot during a spinning cycle, so it is conceivable wires could be damaged in this way. Check the cables feeding the motor for any obvious signs of damage. If you cannot see any problem, disconnect those wires and check for conductivity with a multi-meter. There should be almost no resistance detected in the wire.
If you find a damaged wire, replace it and ensure the new wire is well out of the way of any moving parts. If the wire is faultless you will have to move on and continue fault finding. Try and turn the motor’s rotor by hand, if there is any real friction or if the rotor is seized – you will have to replace the motor. Faultless wiring and a washing machine motor - with the existence of an “LE” error code, indicates a fault in the main system board. It should be noted though; this is unlikely to be the cause of the problem. Almost all “LE” errors indicate faulty wiring - so ensure you have properly checked this before installing a new PCB.


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If your opener is truly 25 years old there are not going to be any parts available. The model number you give is not the model number. It starts with 139. and probably has 6 numbers after the period or dash. Once you have it you can go to Sears parts and see if there are parts available.

Your LG washing machine’s motor is controlled by the main circuit board. This is the brain of your washing machine. Depending on the selected program and which cycle is currently running, the PCB will tell the motor which speed to run at and which direction to turn. The Hall Effect sensor on the main circuit board is fed operational feedback from the motor. If there is any difference between what the motor should be doing and what it is actually doing – the appliance will stop operating and display an “LE” error.

For example: if the main circuit board tells the motor to rotate clockwise at a certain speed and the motor doesn’t start, the monitoring sensor will relay this inactivity to the main PCB and a “LE” error will persist. The same error would be displayed if the motor rotates in the wrong direction or runs at the wrong speed. It should be evident there are many faults that could produce the “LE” error code. Failure of one of the major components or a fault in the monitoring and feedback loop, could all lead to this problem. It is true however, some faults occur more regularly than others. Test for the most common causes of failure, eliminate them, and move on to more unlikely faults.

Many causes for the “LE” error are thought to stem from LG’s manufacturing process. Many customers found the wiring damaged or completely severed in their washing machine’s motor drive and feedback loop. If the wires were installed too close to a moving part, they may be vulnerable to mechanical wear once the machine starts to operate. A washing machine vibrates a lot during a spinning cycle, so it is conceivable wires could be damaged in this way. Check the cables feeding the motor for any obvious signs of damage. If you cannot see any problem, disconnect those wires and check for conductivity with a multi-meter. There should be almost no resistance detected in the wire.

If you find a damaged wire, replace it and ensure the new wire is well out of the way of any moving parts. If the wire is faultless you will have to move on and continue fault finding. Try and turn the motor’s rotor by hand, if there is any real friction or if the rotor is seized – you will have to replace the motor. Faultless wiring and a washing machine motor - with the existence of an “LE” error code, indicates a fault in the main system board. It should be noted though; this is unlikely to be the cause of the problem. Almost all “LE” errors indicate faulty wiring - so ensure you have properly checked this before installing a new PCB.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

Your LG washing machine’s motor is controlled by the main circuit board. This is the brain of your washing machine. Depending on the selected program and which cycle is currently running, the PCB will tell the motor which speed to run at and which direction to turn. The Hall Effect sensor on the main circuit board is fed operational feedback from the motor. If there is any difference between what the motor should be doing and what it is actually doing – the appliance will stop operating and display an “LE” error.

For example: if the main circuit board tells the motor to rotate clockwise at a certain speed and the motor doesn’t start, the monitoring sensor will relay this inactivity to the main PCB and a “LE” error will persist. The same error would be displayed if the motor rotates in the wrong direction or runs at the wrong speed. It should be evident there are many faults that could produce the “LE” error code. Failure of one of the major components or a fault in the monitoring and feedback loop, could all lead to this problem. It is true however, some faults occur more regularly than others. Test for the most common causes of failure, eliminate them, and move on to more unlikely faults.

Many causes for the “LE” error are thought to stem from LG’s manufacturing process. Many customers found the wiring damaged or completely severed in their washing machine’s motor drive and feedback loop. If the wires were installed too close to a moving part, they may be vulnerable to mechanical wear once the machine starts to operate. A washing machine vibrates a lot during a spinning cycle, so it is conceivable wires could be damaged in this way. Check the cables feeding the motor for any obvious signs of damage. If you cannot see any problem, disconnect those wires and check for conductivity with a multi-meter. There should be almost no resistance detected in the wire.

If you find a damaged wire, replace it and ensure the new wire is well out of the way of any moving parts. If the wire is faultless you will have to move on and continue fault finding. Try and turn the motor’s rotor by hand, if there is any real friction or if the rotor is seized – you will have to replace the motor. Faultless wiring and a washing machine motor - with the existence of an “LE” error code, indicates a fault in the main system board. It should be noted though; this is unlikely to be the cause of the problem. Almost all “LE” errors indicate faulty wiring - so ensure you have properly checked this before installing a new PCB.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

could be the motor is burning out

Either the board or capacitor have failed. If the motor is HOT the motor could also be the problem. in oder to tell if it is the board you will have to check to see if there is power coming fromthe board at the place where wires hook up. If power is there then it is either the motor or cap.

I think you are on the right track. Possibly read some specs on what wire you should be using. I've never had to remove or reinsulate data wire but am well aware of how sensitive "data" wires can be.

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

01 = Acquastop operated due to leak / overfill - machine drains until empty + lmin.

A02 = Heater Relay open circuit/short circuit or Thermistor or Safety T/Stat o/c or s/c or Element machine fills to Level Switch & Wash Pump runs.

A03 = Thermistor open circuit /short circuit - machine drains until Level Switch resets +1minute

A04 = Unable to sense/reach temperature in 70mins. - machine drains until Level Switch resets + lminute

A05 = Level Switch not resetting in within 3' 20" of drain commencing - machine drains until Level Switch resets +1 minute

A06 = Not used see also H20 at end

A07 = Wash pump Triac closed/open circuit - check that Drain Pump is not disconnected or Aquastop operated

A08 = Auxiliary Wash Pump Triac closedlopen circuit - check Wash Motor operation- machine drains until Level switch resets+30"

A09 = Main Wash Pump Triac closed/open circuit - cheek Wash Motor operation- machine drains until Level Switch resets+30"

A10 = Fill Solenoid valve Triac closedlopen circuit - check valve/operation - machine drains until Level Switch resets+30"

A11 = 1/2 load Solenoid Valve Triac or alternating Wash Motor action - check Solenoid Valve operation & alternating Motor action, replace Module if required - machine drains until Level Switch resets +30"

A12 = Relay with open circuit - check Heater, replace Module if required - machine drains until Level Switch resets+30"

A 13 = Dispenser Triac incorrect operation closed/open circuit - Wash Cycle completes but with Dispenser Lid notfunctioning correctly

H20 = Static 'Fill Time exceeding 6 minutes - cheek for blockages/low pressure