The inlet screen has nothing to do with this problem. F9 E1 means that the washer isn't draining properly. The model number you have listed is a part number not the model unfortunately which is located on a sticker just inside the door way and you likely can't get to that since the door is probably locked (common when this error occurs). So your model may have a lower front panel or it may not. If it has a lower front panel, remove the screws below the lower front panel and remove that panel to start.
Some of these model's don't have a lower front panel unfortuantely and they are much more difficult to work on. Unfortunately these washers are not easy at all to access and fix a drain problem. There is a drain catch inside the washer that you will want to access and clean if you're getting this drain error. To access the drain catch, it's very difficult. The top panel, the control panel, and the entire front panel all need to be removed so that you can access the pump below the tub. It's really a bad design and it was never this difficult in the past, but now there is quite a bit of work involved to clear the drain so unless you're really handy, this is not something you'll want to tackle yourself.
To access the drain pump, you need to pull the washer forward and unplug it. Pull the dispenser drawer completely off the washer. Next, remove the 2 bolts coming in from the back of the top panel. The top panel will pull straight back, up, and off. Remove the screws coming in through the dispenser opening and the screws coming from the inside of the washer going into the control panel. The control panel will then pull up and out of the way. At this point, you just have a few screws going across the top of the front panel to remove. Tip the wash back a bit and there are 2 screws in the bottom right and left corner you need to remove.
Since the door is locked, there is a plastic tab hanging from the bottom of the latch assembly. You need to unplug the washer and pull down on that plastic tab to manually unlock the door. You'll need to reach in from the top of the washer and if you're not tall or have long arms, you may need a stick to help pull down on that plastic tab to unlock the door.
Open the door and you need to disconnect the rubber door gasket. There is a wire ring around the front lip of the rubber door gasket. Use a flat head screwdriver and pry the wire ring off the gasket. Now you can remove the front panel to access the drain pump located under the drum attached to the drain catch.
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