I have a Kitchen Aid 5 speed blender. After turning it on, the red light blinks, then after choosing a speed it works, but when I hit the OFF button nothing happens. I hit the PULSE button once to stop it and then the PULSE button again so the PULSE button light goes off. But the ON light is still blinking no matter how many times I hit the OFF button. Finally I just pull the plug????

SOURCE: Blinking lights on KitchenAid blender

Alternating blinking lights on a Kitchenaid blender indicate a bad circuit board which is unable to run the motor properly. Unplug the blender, take the jar off, and turn the spindle by hand. Then plug it back in. If it does not work properly, try a different outlet (perhaps not in the kitchen). If nothing works, the blender needs to be repaired.

SOURCE: Kitchen Aid Blender Rubber Coupling replacement

Someone else suggested a link that explains exactly how to unthread the old coupling... and it works. It took me about 90 seconds to fix my blender. But in case that link is dead, here's a summary:

(1) Note that the coupling (the round part with teeth) is threaded to the blender motor in reverse to a standard threading. So it screws off just like a bottle top, but in a clockwise direction.

(2) place the blender base on a tabletop, facing you. You should probably unplug it.

(3) take a punch or a flathead screwdriver, and place it against one of the coupling teeth that is furtherest away from you.

(4) strike the back of the screwdriver with a small hammer or maillot. The result will spin coupling clockwise. It may take several tries, but the coupling will eventually spin clockwise faster than the motor, and it will begin to unthread.

(5) unscrew the old coupling, and screw the new coupling into place (counterclockwise). Note that the new coupling will tighten itself every time you use your blender, so no need to worry about tightening it too much.

(6) Make a smoothie to celebrate your success!

SOURCE: blender blinks

need to resolder the triac located on the Printed circuit board this part is on an aluminum heat sink, and the third leg is most of the times the one with a broken or poor soldering joint due to the vibration of blender

ThaMp3Doctor

• 8597 Answers
• Posted on Mar 31, 2009

SOURCE: Will kitchen aid purchased in USA work in australia?

The Australian outlets will zap that blender - you need to purchase a 240V to 120V transformer in order to make it work.

ThaMp3Doctor

• 8597 Answers
• Posted on Apr 02, 2009

SOURCE: need a schematic diagram for a kitchen blender

I think this will help a bit (p.2 only), although it seems a little crude to be a full service manual - this is a service manual for an Oster "Osterizer" Blender - one of the classics:
http://www.villaware.com/manuals/ProductService/Service/Sunbeam/4112.8.pdf

Here is one for a Philips blender, but once again, not as detailed as I've ever seen:
http://www.eserviceinfo.com/download.php?fileid=27616

These are the free one I could find. Generally, an authorized servicer is not allowed to distribute a full service manual, so you normally have to pay someone to get a complete service manual.

-Tha Mp3 Doctor