Question about KitchenAid KSM150PS Artisan Series Stand Mixer

1 Answer

My governor assembly is broken and the speed controller does not work

A piece of the governor assembly was broken and inside the back part of the mixer. Since tehn the mixer speed controller does not work and the motor makes a bad noise when you put it in any speed 4 or higher.

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  • KitchenAid Master
  • 1,221 Answers

You will need to buy a new governor from Kitchen Aid and possibly the speed control plate at the back. Often when the governor explodes it damages the contacts, they aren't expensive and it's easier than fluffing around trying to straighten it up.

Posted on Jan 11, 2014

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Posted on Jan 02, 2017

hslincoln
  • 235 Answers

SOURCE: Question regarding KitchAid mixer, Model K45ss. excessive noise.

Maeveda, Congratulations on your 30 year old KA mixer! Was it a wedding present? Do you still have the K45SS Parts List? If not, you can download a PDF version from the KA website. Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number (in your case, use K45SSW select Parts List (1) and then check to see it this matches your mixer). You can check on page 4 & 5 for the disassembly and reassembly of your mixer, along with all the parts. It will be messy but gratifying. Once apart you can check for any other unseemly wear and tear on the gears, etc.
As far as parts go, here are four potential vendors in no particular order: RepairClinic.com; mendingshed.com; searspartsdirect.com; partstore.com (this vendor the best prices for my wife mixer's parts, but sadly they had to back order them, which was disappointing to SWMBO). Prices for the same part vary widely between vendors, so do your comparison shopping. Here's a link to a site that details the disassembly and replacement of a mixer's grease, which might be helpful, too. http://www.foodonthefood.com/food_on_the_food/2009/04/how-to-repair-a-kitchenaid-mixer-yourself.html
Good luck and have fun. I hope this helps. Howard, Burke, VA

Posted on Nov 04, 2009

  • 143 Answers

SOURCE: Question regarding KitchAid mixer, Model K45ss.

Yes this indeed does sound like you have a problem. There could be a couple different cause of this noise. If your main drive or worm gear has been damaged, it is likely to not run at all or jam up. So i think this is not the problem. There is however a codder pin located inside the transmission gears this can be seen by removing the upper housing of the unit, and then exposing the oil and gears. clear away the oil surrounding the gears, and save this grease for later. After this you should be able to visually see this codder pin AND the gears, rotate the gears while inspecting them and the pin. If the pin is slightly bent or broken this will make the grinding noise that your are talking about, while still operating and driving the unit. part number for the codder pin is 9705444. If however the noise is coming from the motor area this could indicate a worn or faulty motor bearing. This can cause the motor to operate on an angle and can cause a rubbing noise from the cooling fan or the winding of the motor itself rubbing on the mixer housing. Part number for the braket and bearing is 3180526. both are relatively cheap and easy to replace. If you find and fix the problem be sure to inspect or change the oil as this can often have metal chunks and other particles. Hope this Helps

Thanks

Posted on Nov 06, 2009

SOURCE: My Kitchenaid mixer (k5ss lift bowl?) smells hot

I think you have a K45SS. It sounds like there is a problem with one of the gears, probably the worm gear. The worm gear is designed to be the first to fail if the mixer has struggled with a heavy dough or other difficult to mix substance. The best way to establish the cause will be to open the head up and check the gears for signs of damage.

Posted on Jan 25, 2010

  • 130 Answers

SOURCE: KichenAid mixer parts problem

http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%208212057.pdf

has a diagram of the locking mechanism item 9. The screw you removed was probably item 8. Look at the parts and you should be able to figure out how to get it back together.

Posted on Mar 30, 2010

1800PartsFix
  • 36 Answers

SOURCE: My 325 watt, 5 quart artisan stand mixer won't

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.

Posted on Nov 02, 2010

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Referring to the following parts description:

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

The speed is controlled with a combination of the governor assembly #24 which mounts on the motor shaft, and the phase control board #27 which is mounted on the back of the mixer.

They operate in conjunction with item #25, the control plate assembly.

WARNING SHOCK HAZARD. FOLLOW THESE STEPS ONLY IF YOU ARE COMPETENT WORKING AROUND HOT ELECTRICAL COMPONENTS AND FOLLOW ALL SAFETY PRECAUTIONS!!!

Remove the rear cover screw #37 and the rear cover #36 and examine the governor when it is running. Also watch the speed control lever mechanism as you move it from off to the highest speed watching for binding etc.

Make sure that the spring #4 is attached to the bottom of the control plate #25.

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Referring to the following parts description:

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

The speed is controlled with a combination of the governor assembly #24 which mounts on the motor shaft, and the phase control board #27 which is mounted on the back of the mixer.

They operate in conjunction with item #25, the control plate assembly.

WARNING SHOCK HAZARD. FOLLOW THESE STEPS ONLY IF YOU ARE COMPETENT WORKING AROUND HOT ELECTRICAL COMPONENTS AND FOLLOW ALL SAFETY PRECAUTIONS!!!

Remove the rear cover screw #37 and the rear cover #36 and examine the governor when it is running. Also watch the speed control lever mechanism as you move it from off to the highest speed watching for binding etc.

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The mixer motor starts and stops, it will not continue running on any speed. By playing with the speed selector you can get it running sometimes but you cannot keep it running if you change speeds.


Here is how your speed control works:

Speed Control
The speed control of the mixer is attained through the use of a governor assembly mounted at the rear of the control plate assembly.
The electrical circuit is made and broken by the action of the fly ball governor revolving against the control plate.
When the switch lever is moved to an ON position, the position of the control plate with respect to the governor is changed by the action of the switch lever.
Thus, when the control plate is set close to the governor, a relatively low speed of the motor causes the governor to make or break the mixer’s electrical circuit through the control plate.
When the control plate is set farther away, a greater motor speed is required before the governor starts breaking the circuit.
The action of the governor is such that the speed of the motor will remain constant for a given setting of the control plate within certain loads.
After certain loads have been exceeded, the speed of the motor will drop to meet the torque requirements of the given load.
Speed is controlled by the governor and the control plate in conjunction with the phase control.

TRIAC RMS VOLTAGE
BOTH CONTACTS OPEN - 40 VOLTS
ONE CONTACT OPEN - 80 VOLTS
BOTH CONTACTS CLOSED - FULL VOLTAGE
NOTE: The triac regulates the power the motor sees depending on control board contacts.
A device called a triac is a part of the phase control circuit.
This device determines the amount of power the motor sees dependent upon the condition of the control board contacts.
If both contacts are open, about 40 volts RMS is applied to the motor and about 80 volts is applied when either contact is closed and the other is open.
When both contacts are closed, the triac is full on; consequently, full power is applied to the motor. In this way, the speed is controlled.
If the mixer motor begins to run too fast for a
particular speed setting, one or both contacts open, which cuts back on the voltage the motor sees, thus slowing it up.
If the motor operation becomes too slow, one or both contacts will close, applying the needed voltage to the motor to sufficiently increase motor speed.
This is always accomplished through the triac.
The control plate contacts control the triac, and in turn, controls the amount of power supplied to the motor.

The control Plate for your mixer is PN
W10119326
http://www.marbeck.com/mixers_kitchenaid_parts.html

If your not good with tools / meters or tedious repairs do NOT attempt this yourself.
The service manual for your mixer can be found here
http://www.f-ems.com/download/DownLoad.aspx?DocsID=082009012917

and is:
LIT4177310-C


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It sounds like you may have a governor issue. which is located at the back of your unit. it controls the amount of current going to your motor by way of centripetal force. the part number for the governor assembly is 4159675. this can become weaker over time and will eventually cause it to sputter or speed up suddenly. hope this helps.

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