LDF6920ST LG Dishwasher - Inlet valve operates in test mode but not to wash modes

[Homepro]

Model Number

LDF6920ST

Brand

LG

Age

6-10 years

My dishwasher worked fine but I had a very small leak from the inlet valve and replaced it with a new one. I also replaced the float valve that was dirty inside. After the replacement, the inlet valve does not open to put water in the dishwasher. However, in the test mode, in testing the inlet valve along with all the other components it works fine and runs water into the unit.

I've gone through everything again. I replaced the new parts with the old functional parts to no avail. I assume that I am looking for something that affects input to the PCB to send out that "open" signal. I was relieved to see it work in the test mode wich meant that all the wiring was working.

I would be most grateful to hear from that person out there who has been there.

 

[Jake]

I'm not familiar with LG dishwashers but this may help:

FIXED - LG Dishwasher Model LDF6920ST Late cycle 1E error code

I have an LG LDF6920ST that is throwing a 1E code. I understand that this might be a water inlet valve issue. The strange thing to me is that the dishwasher cycles for around half the cycle (about an hour) then throws the code. Water enters and drains from the tub prior to the code being...

www.applianceblog.com

Also check the main PCB control board to see if you notice any burnt or discolored components on it.

Here's the main PCB control board:
Pcb Assembly,main 6871DD1006Q

Jake