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

Homepro

Member
Joined
Aug 24, 2022
Messages
1
Location
Hawaii
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

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
134,371
Location
Redmond, Oregon
I'm not familiar with LG dishwashers but this may help:

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
lg-pcb-assembly-main-6871dd1006q-ap5195425_01_m.jpg


Jake
 
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