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Clean the pump filter so that the water can drain freely. To do this, disconnect the machine from the power supply and turn off the water. Then open the cover flap at the bottom of the front and remove the filter. Clean the filter under running water and then reinsert it
Check the drain hose to see if it is kinked at any point and straighten the kink.
Check whether the transport locks are still in place and remove them.
The unit should be standing straight. Check with a spirit level whether the unit is straight to the back / front and / or to the side. With the adjustable feet you can compensate for unevenness of the floor and thus set the unit in balance.