My mixer suddenly started working only in fast speed regardless of what position the speed switch is in. This, unfortunately, usually causes the bowls ingredients to go flying out all over. Is there hope?
I have a K5-A, bought it for my S.O., she makes Krispy Cream doughnuts with it. The speed controller on a K5 has "originally" 2 return springs. They rust / break fall out the lower vents in the white cup that covers the rear of the machine. You can remove the cap with the removal of the lone screw at the top rear of the machine. Just gently work off the cap after the screw is removed. MAKE SURE THE MACHINE IS UNPLUGGED FIRST!!! There is a funny metal flange thing that is mounted with two screws at the top on springs. This is esentialy the speed controle. It is actuated by a rod conected to the outside switch that runs up the bottom of the motor drive. You'll note the simple but effective off / on switch there. When the springs rot the funny flange thing does not return to its flat resting position and we have no low speeds. The springs attatch to the holes on eather side of the flange and stretch down to a post type mount below the speed mechanism. If you use a good light you can see and mount any small spring to these mounting points and the switch returns to rest and you have all speeds, a single light spring will work.................There, You, Go..........Reassemble.
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The starting position for those top speed control plate screws with the lock nuts it 8 full turns in when you fit the plate. Correct adjustment begins in or out from that point. The bottom screw should have been left where it was to start with as that is for adjusting the start position so that when the lever closes the switch contacts to start the mixer the plate only starts moving when the lever moves to the second click. Try and get the bottom one roughly right and then work on the top ones. Turn it to the first click on the speed lever and then EVENLY adjust the 2 top screws to have the planetary turn 13 to 15 times per 15 seconds. Lock up the lock nuts and then check that the bottom screw is in the correct position with speed increasing a small amount as the lever slips into the second click.
Speed controllers reduce the power provided to the mixer motor and have to "soak up" some of the power not used. If the mixer was used on low speed but heavy load, it could have burned out the speed controller. Some of them fail by shorting out which means that the motor always gets full power regardless of speed setting. It sounds like your speed controller has burned out.
You either need to adjust the speed control switch under the rear dome or you need to replace the switch, I think you can find on YouTube videos on how to adjust speed control switch and the part is easily available on the internet. AND!! you can do this repair without a full tear down.
When you said "the speed switch doesn't want to stay in the off position", you meant to
say "the speed switch in the OFF position does not turn OFF the mixer", or "the speed
switch physically cannot be moved to the OFF position"?
In any case, try to adjust the mixer speeds. Obtain a copy of the K45SS Repair Part List from Kitchenaid.com. Remove the screw holding the End Cover and locate the three screws from the Control Plate. All three (2 top left and right, and 1 bottom) must be adjusted.
1. Loosen the lock nuts enough & Turn the 2 top screws clockwise until they cannot be turned anymore. Leave the bottom screw alone for now. 2. Use a dab of white paint or paper whiteout to mark the positions of the Phillips screws. 3. Plug in your mixer and Set the speed selector to "Stir". 4. Turn each top screw One full turn couterclockwise (alternating between Left and Right) Keep making one full turn at the time (for both left and right) until the motor starts running. 5. Put your hand near the Agitator shaft and allow it to brush your finger slightly. Use your watch or clock and start counting the number of times the shaft touches your finger in 60 seconds. The correct count should be 60 RPM (Rounds Per Minute). If it is less or more than 60, give each screw 1/4 turn counterclockwise or clockwise and start counting again. Now tighten both lock nuts. 6. Set the speed selector to "6" and turn the bottom screw either clockwise or counterclockwise to achieve a speed of 180 RPM.
For your reference, the planetary RPM's for the 5-qt. tilt-head Artisan Stand Mixer are as follows: Stir speed - 60 Speed 2 - 95 Speed 4 - 135 Speed 6 - 180 Speed 8 - 225 Speed 10 - 280
By not working to mean that the planetary gear wont move? or does it just make a weird noise when it is on a low setting? If the gear is completely stripped the unit shouldn't run on any speed regardless if there is mixture in the bowl or not. Since I can't see the mixer I would say that there might be a slight tear in the gear which would only allow the mixer to get stuck on a slow speed where as on a high speed it is running fast enough to skip that particular tooth. I understand that the mixer is brand new but when it comes to mixers you can strip a gear right out of the box depending on the consistency of the batter you are mixing. If the machine is under a year old it is under warranty and you are allowed free service by an authorized repair center in your area.
I had a similar problem where the mixer would also go to fast speed right away. On the back at the top was a screw that was loose. After tightening this screw I had 4 speeds but no stir speed. I unscrewed that screw and a bolt fell out. This bolt went to threads on the inside of the area covered by that back plate. I put that bolt back on and tightened it and the corresponding one on the other side and wala the mixer works perfectly at all speeds. Hope it helps. Make sure mixer is unplugged before attempting anything like this (wires are exposed when the back plate is removed - some kind of flexible circuit board).