(Great name by the way !)
OK, the error E15 indicates a flood into the base of the macine.
This sets the flood guard and the discharge pump will run continuously in an effort to protect the electrics in the base.
Turn off the electric.
Remove the metal kick panel of the machine.
Look in there and you will see water in there.
Carefully dry this up.
The machine should now be reset.
If this re occurs you have a leak and will need to find it and rectify it .
You may want to run the machine a couple of times to be sure there are no leaks.
Often this occurs just due to splashes of water falling into the base pan, if the door is opened whilst the machine is running.
Can I ask you to take a moment and rate my response? Please use the smiley faces which you should now see. Please remember you are rating me personally, not the website or the problems you have had with this machine.
If you need to ask me anything after rating, please just follow the link in the welcome email