Always disconnect power & turn off water before doing any work. This is the simple fix for Error code E20Simple fix to this problem with out having to buy another controller board.Carefully remove back cover &Make a lite adjustment to the electronic pressure sensor turn with Philips driver 45 deg clockwise to raise water level by 25mm will fix the pump running all the time & will spin now.
E30 is a Water level problem
Wait, this fault may clear itself. If not, touch the PROGRAM SELECTOR to Drain & Spin then touch "Start/Hold Pause" button to drain the wash bowl.
E17 is
Machine goes out of balance or vibrates excessively when
spinning.
Make the machine level
Adjust feet to touch the floor
Redistribute clothes evenly.
Its possible but difficult. You will need to drill a small hole down the middle of the snapped off bolt and use a correct size "easyout" which is a special reverse threaded stud which goes into the hole and unscrews the snapped off bolt.