SAMSUNG WASHING MACHINE WF306LAW

These are the Error Codes Displayed.

https://www.lg.com/us/support/help-library/lg-error-codes-for-laundry-and-dryer-CT10000011-20152310891742

LG Washing Machine Error Codes: Meaning and How to Fix

https://fixappliances.ca > lg-washing-machine-error-cod...
Close both water taps. To drain out any trapped water, power the washer back on, press the spin button until no spin is selected, and press the start/pause ...

E3 Error

If your Samsung washer is in the middle of a drain cycle and the 5E error code shows on your washers display, it means that the water is not properly draining out of the washer. Something may be clogged, jammed, or blocked and thus preventing water from draining out of the washer.
https://removeandreplace.com/2016/11/03/samsung-washer-displays-error-code-5e-message-how-to-clear-error/

If all of the water has been drained from the washer, check the hose to the water level sensor is not plugged. You can find information on the nd error code here

https://appliancerepairinfo.com/samsung-washing-machine-nd-code/

NF and 4E = No Water Feed = Washer Not Filling. This means that there is an issue that is preventing your washer from receiving water into the water inlet valve. The troubleshooting steps below apply to all types of Samsung washing machines including front load, top load, and washer and dryer combos

https://removeandreplace.com/2015/12/16/samsung-washing-machine-shows-nf-or-4e-error-code-what-does-this-fault-code-mean

Take a look at these codes and see if any look similar.
Sometimes the digital read-out looks different from printed type.

Down on the page there is a link to explore older codes Samsung Washing Machine Errors eHow

I have a
WF306LAW/XAA Samsung, and no idea where this filter is! Any help?

The "3E" error code indicates that a high current is detected.
A "3E" error in a Samsung washer indicates that there is an issue with the motor. Restarting the cycle may clear the error, but a service technician should be consulted if the error code appears again.

I am not a repair professional. I am just a 78 year old man who has been making his own repairs for about 50 years. Therefore the washer ID doesn't mean
anything to me. It's been about 55 years since I had experience with front load washers. However I can refer you to www.applianceaid.com where they have very good and complete trouble shooting and repair information on front loaders. I think you'll find what you need there. Don't worry about the timer, they hardly ever go bad. Good luck with it. If I have helped you, please rate my advice on fixya.

Take the bottom panel off of the washer and there should be a instruction guide in the washer that will tell you what the error code indicates.

I have foud a solution 4E error for my Samsung WD7101CKW. Water that comes inside washer is splitted in splitter with valves. One of these valves has a red label on it - this is a valve with restrictor of flow inside. This restrictor is used to limit flow speed mainly for testing purposes of pressure/water level sensor. Because of that restrictor (red cap with two holes of 0,5 mm diameter) blocked flow too much, after some time washer controller thinks that water has too low pressure.
Unplug washer, disassemble hoses from valves, disassemble valves from the washer (screwdriver needed), drill both holes in red restrictor to 1 mm (use 1 mm drill or just big needle). Assemble in reverse. Will work :)
Greetings - Thomas