Can you post the model number of the appliance please?
Has the machine stopped full or empty of water?
OK, thanks for that.
E20 is normally a draining fault.
Did you find anything in the filter?
If you set the machine to spin only and with the filter out start it, does the pump impellor turn? (Look in to the open filter).
If it does, refit the filter.
Try the machine again.
Let me know what you find or what happens.
You can only check the end of the drain hose that connects to the house drains.
Take it off and check for a blockage at that end.
Aim the hose into a bucket.
Set the machine to spin only.
Does it pump out or does the hose go stiffer?
OK, is the machine full or empty of water at the moment?
OK, carry out the first check I asked you to do.
Take the filter out.
No laundry in the machine.
Set the machine to spin.
Look into the open filter.
Is the pump impellor spinning?
You'll hear the pump impellor, there will also be a sucking noise.
If you only hear a hum, it's jammed.
There's something in the pump jamming it.
Unplug the appliance.
Pull it out and have someone hold the machine tilted rearward while you work on it.
Put some towels down.
On the underside you'll the clips coming through the base that hold the filter housing in place.
Squeeze the clips and push them up into the base a little.
Reach in and slide the drain pump out sideways, taking care to catch the O ring seal if it comes out.
Take the pump out, clean out any debris.
fit the O ring to the pump and refit it.
(It goes into slots in the filter housing).
Side it fully into the housing and then push the housing back onto the base until the clips come through.
Stand the machine up.
Plug it in and try it again.
If you can't manage from underneath.
Put some towels down and very carefully lie the machine onto it's left side (dispenser side down).
Let me know how it goes.#
I'll send this as an answer.
This will give you access to the Accept button.
Good luck with the repair.