Question about Bosch WFK 2401
My washer runs through it's entire wash cycle but the drum does not spin. Clothes are soaked and not clean. Drum moves farily easily by hand. This is a sudden issue - it worked one day and not the next.
Looks like I have a similar problem, but the power control module looks blackened. A service person diagnosed it as shorted out power control module and, as a result, burned out motor. He claims this is very common for the "small" BOSCH washers.
Posted on Jan 09, 2008
We had the same problem on a 7-yr. old WFK02401 washer that had been used daily for 7 years. Bosch's approved repair people quoted us $350 for installing a new motor. In fact, all it needed - knock wood - was new motor brushes, for which I paid all of $45, including shipping (or cheaper, if I'd ordered directly from Bosch.) To replace these requires a half-inch wrench and a bit of confidence and common sense. I won't go into all the details, here, except to say that you need to remove just two bolts, unattach the bundle of wires strapped to the motor housing, take out the motor, replace the brushes, and put back the motor. There may be a problem with one of the control modules in the machine - electronics that oversee the washing cycle and turn the motor and other items on and off during same - in which case you may want to find a repair person. I just learned that there is a circuit diagram pasted under the machine's top cover; it includes some resistance values (ohms) that can help with troubleshooting, I believe. Bosch's own repair/service people - third-parties, all of them - are not going to want to replace brushes; they make more money doing entire motors, I imagine. Also, they do not like it when a man watches them work or worse, when a woman (aka my wife) asks them smart questions. They are used to having their way with slightly intimidated and ignorant females - trust us, and pay us. But that's another story.
Posted on Sep 05, 2007
First step is to see if the drive belt that connects the motor to the drum has come off the pulley. If it has, check that the pullies are intact (I've seen the spokes on the big drum pulley on other machines break just where they join the hub, which makes the pulley rim all wobbly - I've also seen the end of the motor spindle pulley snap off). If the pullies are OK, then try putting the old belt back on to get you back working in the short term - but buy a replacement (if the belt is old, tired or damaged, it will probably come off again pretty soon). If the belt hasn't come off, you could be looking at a motor or motor controller problem. Any recent history of Radio/TV interference, or of the motor sounding particularly groany of late might point you in the direction of new brushes for the motor (which aren't hard to change). If you get no joy with that lot, post back with a note of what you've done and seen to date and I, or someone else, will walk you through how to check the motor windings. A.
Posted on Apr 11, 2007
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