Question about Cuisinart SPB-7 SmartPower Work Top Blender

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No power beyound the touch pannel

Lights come on but no action in the blinder.

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I managed to fix my Cuisinart SmartPower Duet blender. I had the same problem, lights and buttons work, but no motor action. There are two thermal fuses, one tape attached to each stator winding. Both of mine were blown.

In addition, when the fuses blew, it must have spiked the triac. I had to replace mine. It's the black 3-legged transistor looking device with a small metal heatsink attached to it. This gizmo directly throttles the power to the motor under control of the microprocessor. There are some guides on the internet on how to test it.

Also, the clutch was very hard to remove and needs to be removed to more easily replace the thermal fuses. I clamped down the end of the motor shaft to a bench vise real hard and then I used a 7/8-inch open-end wrench to wedge into the clutch prongs which made it much easier to apply torque. Remember that its screw threads are reversed from normal screws so that it does not unscrew during operation. You have to turn it counter-clockwise to unthread it.

It took about 1-1/2 hours and definitely needs to be done by someone who knows their way around electronics. Hope that helps!

-Vince

Posted on Oct 01, 2008

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So what exactly do the thermal fuse & the winding look like? can some post pictures?

Posted on Dec 28, 2012

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