I don't know your model, but the filter will be accessible without getting into the innards of the machine.
Look for something that looks like it might turn to unlock, then pull out located low down at the front or the back of the machine.
On my top loader the filter is housed in the spindle of the agitator post. Pulls out and reveals lint bag etc.
Possible that the drain pump is running due to a small leak is present at the base of the machine, providing this has a metal cover on it ,it gets water in here which activates afloat switch switching on the pump hence draining the machine to avoid possible flooding, if the pump does not appear to be running then the drain hose is too low resulting in syphon effect,in which case raise it...Good luck
The code is related to it not being able to drain. The most common cause is suds in the drum from the wrong detergent. One of the other things that can cause this is the drain pump is plugged with something like a sock or other debris. If you want to drain it, you can try to move the drain hose to a lower level and see if gravity will drain it. This might not work if something is physically blocking the drain. You can also use a wet and dry vacuum cleaner to draw out the water through the drain hose. IF that does not work then you have to remove the bottom panel under the door and locate the drain cap. WHEN YOU REMOVE THIS ALL THE WATER COMES OUT. Get ready with something to catch the water. When you take the plug off, there is a filter or trap that you can clean. Once you have done this then you should be able to run the rinse and spin drain to get the machine back in order after you put the plug back in.
e13 is excessive drain time, normally down to blockages in the pump filter. this is at the front right hand side normally behind a flap and should unscrew counter clockwise.
