Samsung washer WF45K6500AV/A2 won't finish filling with water.

[aladell]

Washer popped the ckt breaker when started. My husband cleaned the filter and restarted. Now washer wont fill with water. It starts, you can hear the water start going in but then it stops and the arrow continues to blink. The cycle never finishes. I can put it on rinse and spin and it will place some water in it and it will remove the water.

I downloaded the smart app and got the code for the door cleaned it and got a code for checkpoints. I can not get it to go into diagnostic mode based on the youtube videos (I watched several different ways). I also obtained the service manual for the model, but I can't get it in diag mode to pull codes.

I believe it might be the water pressure sensor based on other inquiries I've read. Is there a way to pull codes or guaranteed way to get it into diag mode so I am not changing random parts? I was an aircraft electrician in the military, so I am not scared of breaking it down if I have to. Thank you in advance for any help.

[Vance R]

Diagnostic mode is not well documented. 

enter smart install 

standby mode, push the delay end button until 17:00 shows then push and hold start/ pause for 7 seconds - AS should appear. 

error codes

push bottom right button - owner's manual shows "speed speed"  - CR should show then turn cycle select knob 1 click clockwise to show first code. Manual indicates there could be 7 codes stored, 1 click clockwise for next code.