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Control relay for motor controller faulty
This fault code is only displayed on washing machines that have a CIM, BPM or Direct Drive motor fitted and an external motor control unit is used.
The main electronic control unit has failed to detect the relay that switches the motor control unit on and off has operated correctly. This relay is fitted on the main electronic controller and it is highly unlikely that there is an issue with the electronic board that controls the drive motor.
Check wiring and all connectors between the motor and main electronic control units
Door or Lid Latch Assembly If the washer won't spin or agitate the lid switch assembly might be defective. This is a very common problem. The lid switch assembly can fail either mechanically or electrically. Test any electrical switches with an Ohm meter for continuity. The switches should have continuity according to their design.
Door Lock Motor and Switch Assembly If the washer won't spin or agitate the door lock assembly should be checked. The door lock can fail either mechanically or electrically. Test any switches on the door lock with an Ohm meter. The switches should have continuity according to their design.
Motor Control Board If the washer won't spin or agitate the motor control board might be defective. The motor control board provides power to the motor as well as direction and force. If the motor control board is defective the washer may not work at all or function properly.
1) Please test the main motor, see my personal TIPS for motor help. 2) test the output board for input voltage motor, if there are NOT the board is faulty. see the diagram and block diagram You can RUN the software calibration for diagnostic,troubleshooting, and fix it. Happy NEW YEAR, God bless you
Hi, If it was running in the proper direction before suddenly changing the direction then the motor control board is faulty. If it was happened after some service inside then the connection of the motor is reversed unknowingly. If so reverse the connection of the motor. As its a DC motor it will change the direction when the applied DC voltage reversed. Ajin
The F28 error means that the main control board and the motor control board are not communicating with each other.
WHat would need to be checked to fix it is for good tight wiring connections on the wiring harnesses between the motor control and the main control boards,also for worn parts on the motor& that the motor is running....(that the drum turns in both the washa nd spin directions)
They is no way with out extensive rewiring to allow the complete removal of the control board. but I noticed you said it would not allow the 24volts to pass from R to Y. R is the 24volt constant and Y is Stage 1 Cooling this transfer of voltage happens in the thermostat not at the board. The thermostat's Y should tie into the board but also be tied directly to the control wiring leading to the outside unit. The only reason it ties to the board is to allow for the fan relay for the evaporator fan motor to be engaged. If you do not have 24volts on Y at the control board it is not because of the control board it is because of your thermostat.
Does your new motor have two sets of short wires with connectors in the middle of them? If so then it is reversible and the instructions for doing so are printed on the motor data plate on the side of the motor.If it does not have these wires then reverse the polarity of the two power leads as they come off the top of the contactor, that should fix your problem.
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.
Thanks for using FixYa. 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. The hall sensor is rather easy to replace, and is covered by a seven year part warranty (in US). It only takes around half hour to replace it with a new one. 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. Please do rate the solution if the issue is resolved or post a comment for further assistance.
Hey rickthecabin, My post is for DIY folks I’m an owner as you of the machine.What makes the “Lr” error code difficult to troubleshoot at least for me is not having known good parts for substitution in troubleshooting. Just in case you don’t have the SM;The Service Manual for reference. Sears Parts Direct for reference. From the SM the FAV6800AW the Lr error code = Locked Rotor:The machine has repeatedly tried to turn the motor.I feel this could be related to the following failure scenarios; drive system binding, a failed Motor Controller, a failed Control Board, a failed Motor or signaling issues due to the wiring harness/connector corrision issues. There could be loss of signaling to/from the Control Board via connector CONN P-25 on the Control Board to JP-4 at the Motor Controller which carries the PWM control signal for the Motor Controller.The Motor Controller takes single phase 120VAC and converts to 3 phase 120VAC for motor speed and motor direction control,There could be loss of Tach input signaling from the Motor to the Control Board and anywhere in between within the machines wiring harness.As I mentioned without known good parts this could be a difficult problem to troubleshoot. I have all known good ebay major parts for this machine so it’s easy for me to troubleshoot.If you decide on a service repair call I would make sure the service tech has all of the parts I list.My WAG is the Motor Control Board then the main Control Board then the Motor.A wiring harness issue would be last on my list of troubleshooting steps but reseating connectors is no cost. I would check for system binding issues no out of pocket cost for that. Can you lift he lid of the washer and rotate the wash basket in the Counter Clockwise direction.The Wash Basket should rotate with one finger with what I call the pinky finger test with very slight rotational resistance in the CCW direction.I’m trying to get a feel for drive system binding issue.The wash basket under normal conditions will not rotate in the CW direction.What are your results?This is a good test for upcoming Clutch issues if you haven’t all ready experienced. If you have a measure of Wash Basket CCW rotational resistance it could be caused by the One-Way rusted roller clutch bearings, rusted Outer Tub Bearings, and the roller bearing located in the Spinner Assembly all brought on by a slight leak with the Tub Seal.I’m not saying this is the trigger for the “Lr” error we are doing non intrusive troubleshooting and we need to start somewhere.Do you detect any excess drive system binding in the CCW direction of the Wash Basket? I would remove the front cover of the machine with 120VAC removed to the machine rotate the Clutch Pulley by hand and see if you have any binding.The Clutch Pulley should rotate freely in the CCW direction which will rotate the wash basket in the spin direction.The Clutch Pulley should rotate freely in the CW direction which is the agitate/tumbler rotation direction, any binding?I don’t expect any binding with the motor but you could remove the belt and check for rotational resistance of the motor it should be very light. If you can get into Service Mode try the Quick Spin Test on page 14. What are the results? If you can’t run the test I would next try the Motor Control Board Output Test on page 15. You will need to remove the front panel of the machine and disconnect Connector JP4 on the Motor Control Board.If you feel you are not qualified to check 120VAC measurements at the Motor then it would be time to call in a qualified Maytag FAV6800AW repair company. I have worked with a forum member who cleared the “Lr” error by replacing the Motor Control Board.It’s gets expensive with part buys if that doesn’t restore normal operation. Post back if you have questions.Rich