LG LDS4821ST motor sound continously running, no error codes displayed

[Fireguy94304]

LDS4821ST Dishwasher has a motor constantly running with no error codes displayed. The problem started after I tried to run a load of dishes before work and came home to the dishwasher sounding like it was still running. I had to disconnect power to get the dishwasher to turn off. If I plug it back in the motor begins to run again. What could be the cause? Bad controller? Bad PCB Assembly?

[john63]

Serial Number will likely help explain the cause....

[Fireguy94304]

The dishwasher is a LG Model #LDS4821ST, S/N 811KWTA00009

[john63]

Stuck in DRAIN MODE.

Usually caused by oils/fatty deposits from years of washing (contamination) or minerals in the water supply (clay/calcium etc)

Replace the GUIDE ASSY (Part number: 4975DD1001A

)

Located on left side of dishwasher (must be pulled from cabinet/counter for access)

[Fireguy94304]

Thank you John63! I will replace the part and let you know. Gotta be cheaper than a new dishwasher, even though the wife will say I am just cheap S.O.B.

[Fireguy94304]

john63, that worked replaced the guide assembly and dishwasher working now. Thanks again