Slow speed unattainable

SOURCE: won't shift speeds

ok so the set-up looks sortof like this (lets hope the formatting of this website/your computer doesn't mess it up...)
       C           D
        /  /    \  \   \/                                    |    | ___   /\ |    |   <B
  A
A is the rivet holding the arm to the plastic body B is the contact with a little tab. C is the copper arm D is the arm's contact
there is a copper arm (C) that has a contact on one end (D).  If this contact is ALWAYS open (should only be open when mixer is off) it is either bent (carefully reform) or has come loose at the rivet marked A.  On mine, the rivet at postn. A had come loose, i simply rotated it so that the contacts touched and super-glued the copper to the plastic (which should be rivited).
Since the copper was not discolored, I knew that the temps should not be too high for the super glue to handle (not in my opinion anyway). 

SOURCE: kitchenaid mixer speed

I have the same problem. I contacted KitchenAid they blew me off with
"I am sorry to have learned you are experiencing problems with your KitchenAid product.
Your model and serial number indicate that your 2005 model Stand Mixer is outside of the warranty period, however you may find the part or repair for your appliance locally by contacting an authorized repair center in your area. To locate an authorized repair center please click on the following website link:

http://caservice.kitchenaid.com/
They obviously have a defective poor product now and will not stand behind it!!!

SOURCE: Kitchenaid K5A mixer 10 speed only runs on fast, no slow speed

Pull the back off and there will be two screws at the top of the Speed Control Plate and a 3rd screw at the bottom. Tighten the top two screws down. [email protected]. Let me know if it works.

SOURCE: KitchenAid 2671 onmly run Stir and Second at high speed

Hi. Goto kitchenaid.com and download the parts catalog for your mixer model, these drawings will assist you in the disassembly and reassembly of your mixer.

You'll need to replace the speed control in your mixer. This is a common problem. Be prepared to wait at least a month for your parts to arrive. Unplug your mixer before you open it up.

If you're still under warranty call kitchenaid!

If this solution has assisted you, please rate it. Good luck! ricardok45

SOURCE: Kitchenaid stand mixer will not stay in the off position.

There is a spring, item #4, which hooks on to the bottom of the control plate, item # 25, and pulls it back when you move the lever to off. Remove the rear cover and see if that spring is still connected to the control plate and to the lever arm, Item # 3. Here is the diagram:

http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%208212369.pdf