I have a LG 5811 dishwasher. I got a motor failure code and replaced motor, I also found a gray wire broken under the door panel and repaired. Now the pump motor cycles when washing or rinse mode. It works fine on the drain cycle.
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Re: pump motor cycles
If you are still having problems, providing the serial number is actually important because of a retrofit to several items in the door panel. Which could actually be related to your symptom.
Please provide the serial number or report back what you did to resolve the problem. Thanks!
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If you have separated the door panels and confirmed that none of the wiring is embedded in the insulation mastic, your next step is to take the covers off the sump area in the bottom of the dishwasher to see if anything (like dental floss or twist ties) is wrapped around the motor shaft. (note: the cutter blade on the end of the motor shaft is held on with a screw that has a left hand thread) If all was clear, replace the motor. To replace motor, pull dishwasher out of cabinet and lay on its side for easy replacement from this point.
The pump is supposed to cycle 4-5 times at the beginning to prime the pump motor. This should last only for about a minute.
If your unit has a serial number that starts with 712 or lower then there may be an issue with the wiring in the door. This sounds like your case if you had a broken wire and discolored wires. The issue has to do with black, tarry residue getting on the wires and causing them to deteriorate from the inside out.
If this is your case, call LG customer service at 800-243-0000 and have them refer to service bulletin IDSW20070060. If your unit is out of warranty they may extend it to cover the repairs (the door liner and wire harness will need replaced).
If your unit has a serial number that starts with 712 or lower then
there may be an issue with the wiring in the door. This sounds like
your case if you had a broken wire and discolored wires. The issue has
to do with black, tarry residue getting on the wires and causing them
to deteriorate from the inside out.
If this is your case, call LG customer service at 800-243-0000 and have
them refer to service bulletin IDSW20070060. If your unit is out of
warranty they may extend it to cover the repairs (the door liner and
wire harness will need replaced).
Ok found the filter in the front of machine, lower left hand corner. It was clean. Proceeded to remove front panel. But first turn of the power and I also turned of the water. Now I found that the wires from the wiring harness had imbedded themselves in the sound profing material. Its like a black thick tar. I guess during the drying cycle the tar heats up and the wires settle into the goo. As the door is opened and closed the wires are put under stress because they are now one with the door. I found a blue wire had broken. I soldered the wire and taped it. I also put waxed paper behind the wires to keep them from hooking up to the tar again. I will check that fix after a couple of months to see how the paper is faring. The machine works perfectly once again.
Remove the front door panel and look for a broken wire. Usually the broken wire is about 1/3 of the way up from the bottom of the door. The wire tends to get stuck into the insulation causing the break. Repair the wire connection and then cover the affected wire harness with a plastic cover to separate the harness from the black insulation. If there is no broken wire, then the thermistor needs to be replaced. That will require the entire unit removed to access from the bottom of the dishwasher. Thermistor failures are very, very rare.
LE stands for a locked motor. If the motor has gone it has to be replaced. In some case though, depending on the age of your unit, it could be a broken wire in the door. If you remove your front panel (6 screws) you can have a look, but turn off the power first. Alternatively you can call for a service call.
With the noise, it could also be that your unit has been siphoning and as a result the motor has burnt out. The proper water level for these unit is the water should be up to the second rim on the inside of the cabinet.
LE is locked motor or break in the wire to the motor if under warranty call for service as there is a problem with the noise insulation (in the door) deterioration the coating of wires and causing any kind of failure.
I have this sometimes where E1 is reported and the pump remains on. The following voodoo has worked for me.
1) Make sure there is not a real drain problem. 2) Cancel any cycle or turn the power button off then on. 3) Run a rinse cycle (15 minutes). 4) If pump continues to run, turn off the power to the dishwasher, let stand for a minute, then repeat steps 2-3. If still not working, leave power off over night and leave the door open then try again.
In each iteration, it is important to curse your LG product and/or threaten it with replacement.