Product review (3 stars): Repair how-to if drain is clogged (nD - doesn't drain)
This washer works ok, and is the only one I found that would fit in my apartment without having to remove closed doors.

That said, it doesn't have a filter, so it will get clogged if you leave any change, or similar items in your clothes..  It won't drain, and you'll get an "nD" indication.  Repair usually is very expensive, starting at $85 just for the visit, and an hourly wage on top of that.... the first time, my bill was around $200, if I remember correctly, and the pump wasn't even broken.

You can fix the washer yourself if it is clogged; the drain pump is not too difficult to get to (I tried every possible wrong way until I discovered the correct way.  My dryer is on top, and I really didn't want to remove it, but eventually I faced reality and wrestled it off).

You have to turn the washer over on its left side to get to the bottom, and there is a black plastic(y) cover with four screws over the bottom.  Remove the cover to get access to the pump.  There are three (possibly four) screws  holding the pump to a bracket; remove those, and the pump comes free.  Disconnect the electrical connector, and remove the hoses (spring loaded clips).  There will be some water, but (in my case not too much).

Once the pump is disconnected, have a cup of coffee; after your break, there are three screws on it that hold the two halves together.  Unscrew them, and there is the object (in my case it was a quarter).

Have another cup of coffee, and then reassemble in reverse order.  If the system isn't draining now, you may have to replace the pump, but at least you can now do it yourself..

Kind of a PITA, but it is fairly doable for DIY.....