Testing motor on bosch washer


Washer has been making a strange noise when ever drum begins to turn. Does not makin it throught the entire turn, only in the beginning of each turn. washer will now not drain or turn? Door was also locked. Had to maually drain washer, and unlock. Alot of black sludge but no hair or objects stuck in it. I could only turn the pump a 1/4 turn. Should it have beenn able to move freely and make a complete turn?

It could be the brushes on the motor or the belt has come off

Hi, welcome to fixya. The emergency latch release is behind the small round panel below the main tub door. **Unplug the washer or turn off the breaker before attempting any suggestion given here please** To open the access door ( small round panel ) you'll require a small round needle shaped object or really narrow screwdriver. Put it in the small hole in the panel push in slightly and turn to about 6 o'clock...clockwise that is The small round cover should now come off and expose the pump with the string going through a hook on the pump housing. Be very careful as the edges are very sharp. A string will be threaded through the pump housing and you just need to pull it to open the main door. Let me know how you make out and also if you require further assistance with this problem. If you don't require further assistance and this indeed was helpful to you, please allow a moment to rate this solution I've given accordingly. Thank you for visiting "fixya" today and good luck. Macmarkus :)

Joe, Thanks for the prompt reply. OK, it sounds like one of two possible culprits, 1) the belt has broke or spun off. 2) the brushes in the motor are worn...although the initial symptom of this is typically manifest in "no spin" so I'd lean towards a broken or spun off belt. You'll need to remove the rear panel for a visual inspection to confirm or dismiss either possibilities. Let me know what you find out. If the belt is off check for possible reasons "why" ? It can be a loose drive pulley, ( the large one, not the motor pulley ) or simply an unbalanced load on the previous wash, just a heads up since you're looking around in there anyway. Of course the belt itself may be worn ( stretched ) or broke and thus at fault as well. Good luck, I'll watch your post. macmarkus :)

I suggest that you check the brushes in the motor for wear.
Remove rear panel, remove drive belt, undo bolts securing motor, unplug motor lead and earth wire.
Lever motor back, keeping hold of it, and remove.
Check the brushes, they are at the opp end to the motor pulley, if there is less than 8mm left, then replace brushes.
I would also check the pump filter, and clean if req'd.
Please rate my fixya solution.
Thanks.

hi, this is a drain pump motor issue. i would check the wires leading to the drain pump and the control board. make sure the pump wires are connected and the control board wires as well. if the wires are connected, this will rule out a communication problem and confirm pump failure.

You can also do a break point test with a multimeter on the control board to make sure the control board is working correctly.

Concerning the locked door(washer locked)**. if the door is locked, this may be a control fault. test the door lock mech for its operational value to confirm this as well.



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