Samsung Washer WF306LAW--XAA model
[ this is just for reference ONLY. NOT intended for instruction on how to repair it or maintaining it. I believe it is missing many details and steps to be used as Instruction.]
( this web server may not be here all the time, so you might want to make copy , while you still can ).
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Samsung Washer WF306LAW--XAA
while filling with water at initial stage , error code "7E" or "E7" showed up.
it says it is silver care unit PCB error.
Water Guide unit ( Silver Care unit ) , water was leaking from where connector seal, and corroding wire.
So I solder the wire directly.
I added some silicone to fix water leaking at connectors.
But, after that, it still show "7E" "E7" error code, while washer is filling with water.
so I jumpered , possible output of AG PCB ( silver care PCB ) unit , so Main CPU board do not receive error signal.
( click on picture for larger view )
This short wire of output of Error signal , fixed the E7 7E error issue
for me.
Picture of Jumper wire added to AG ( silver care ) unit
2019-05-15