Bosch Nexxt 500 Washer (WFM3301UC/06) that won't spin when washing. However, it freely spins by hand. Ran spin cycle test and it returned with a D:08 code. Bosch says D:08 code indicates a bad motor speed control relay. Does this sound correct? Is the motor speed control relay part of the motor control unit? If not, where is it located in the washer? Thanks.

SOURCE: Bosch Washer

Yes, check the brushes. Our 7-yr. old WFK-2401 just stopped spinning and a brush change did the trick. Repair people wanted $350 for a whole new motor, but it was only the brushes. Replacing them is not very difficult if you are somewhat handy with a 1/2in. wrench and have some common sense about mechanics and electrics. Just look carefully as you loosen motor - disconnect its wires first, and think, and study, and try to understand what you're doing. I took lots of photos just in case. In the end it was easy; make sure to get belt off motor and motor will be out in no time; just two bolts to undo. Also, make sure you put brushes in properly - their tips are slanted and need to go in the right way and make full contact with commutator inside. Again, common sense. Bosch sells brushes, also RepairClinic.com, for slightly more but real Bosch parts. I paid the latter $45 with shipping - Bosch part No. 154740. Another option is to take motor out and find local motor repair shop and have them do it. Bosch won't help you. Power to the people - and the motor!

SOURCE: my bosch nexxt 500 series washer won't spin

possibly the motor brushes.
take back panel off. disconnect motor. remove bolts holding motor in and take out motor. check condition of brushes

SOURCE: TURN OFF ALARM

Assuming you have allready checked the operators manual, check again on page 19 for "Accoustic Signal".  To deactivate the signal select a program press two of the option buttons and hold until a short signal is emitted.  There you have it. 

SOURCE: Bosch NEXXT 500 SERIES washer Makes knocking sound while spinning

during transport there are fittings installed to prevent damage to the machine. The shaft may have got bent but before panic sets in try to check 1. that there is a gap between the mahine and units
2. that the unit is leveled.

SOURCE: Bosch Nexxt 500 Plus Elect Dryer Error E01

Absolutely those dryer sheets are the root of all evil....I would also recommend a good vent brush to clean your dryer vent.
Follow these steps, it worked for me:
1. use a shop vacuum to clean out the dry vent or a vent brush.
2. Clean your lint filter with windex, hot water and and soft bristle brush.
If this doesnt work try running the until disconnected from the vent for a cycle to isolate the vent as your issue.

Cheers!