20 Most Recent KitchenAid KSM50PR Professional Series Stand Mixer Questions & Answers

Just repaired one of these similar. It is going to be your speed control switch. Replace that and you are good to go.

KitchenAid... | Answered on Dec 12, 2015

Without looking at it myself I can' think what the problem would be but a cheating solution would be to undo the 4 screws that hold the pedestal to the motor housing and put 4 washers there between the pedestal and motor housing and replace the screws.I assume you mean the flat paddle beater because that's the only one to use to set the bowl height.

KitchenAid... | Answered on Dec 02, 2015

I'm not sure what model of Kitchenaid you have.  I have a professional 6 Quart model, KP26M1XPT. I would recommend that you first check the Hall Effect sensor which determines the mixer’s speed.  I had this exact problem and I actually went out and bought another Hall sensor for about $13.  I replaced the original sensor and made sure that the connection between the sensor and control board was nice and snug. My mixer worked as good as new! But I was curious to know if my original sensor was actually defective, so I put it back in mixer and again made sure all of the connections were tight. Guess what? My original sensor also made my mixer work!  There was nothing wrong with the original Hall Effect sensor except the connection between the control board and sensor was not tight--unfortunately I didn't check the connection before I decided to buy the new sensor. My guess is that the connection between the control board and the sensor probably loosens or comes undone over time from use and vibrations. 
1.  Download the mixer parts and diagrams from the Kitchenaid website to see what the Hall Effect sensor looks like. BTW the part number is 9703312.

2.  You'll need a phillips head screwdriver to open up the mixer gear case cover.
3.  Make sure that the connection between the control board and sensor is absolutely tight and snug.  This is critical!
4.  Also, make sure that the orientation of the sensor is correct.  It's difficult to tell which way the sensor should be connected because the control board has three prongs and the sensor can attach facing up or down. After you've made the connection, run the mixer. If it still doesn't work, disconnect the sensor, reconnect it with the prongs facing the opposite direction and try it again.  I actually found the right sensor orientation through a little trial and error.  But by going through this trial and error, I also had my Eureka moment when I realized that the original sensor probably would also work if it were reconnected with correct orientation.  
5.  This whole process probably takes less than 10-15 minutes to perform.
6.  Finally, use your common sense and make sure to unplug the mixer before checking, connecting or disconnecting anything.

KitchenAid... | Answered on Feb 07, 2015

If you mean the pin that drives the beater it is supplied already fitted in the shaft it is pressed into. As far as I know not a separate part.

KitchenAid... | Answered on Jul 18, 2014

Back cover off, pedestal off, planetary off and then undo all the gearcase screws. Two wires need to be removed from the speed control plate too, 1x white, 1x black. You can then split the gearcase apart and change the gear. Planetary and nylon gear are both held on by pins that need to be punched out with correct size punches, both different.

KitchenAid... | Answered on Dec 25, 2013

The button does not retract, a bit of CRC may help combined with a lot of wriggling and grunting. Flour gets in there over time and builds up and makes the paddle tight. Rasp it out a bit in the hole, try not to remove metal, you just want to remove the buildup. If you had a bottle brush that fitted and cleaned it in there each time it will never happen again. Look how long it has taken so far.

KitchenAid... | Answered on Dec 01, 2013

Most of the time this will not be an immediate problem. Let it cool down and do not over work it again. Continuing will eventually burn out your motor and require replacement.

KitchenAid... | Answered on Nov 14, 2013

It sounds like you need to change the brushes. You can look up your parts manual online here and then buy them online. Should be under $10.

KitchenAid... | Answered on Sep 21, 2012

On models with the "STIR" speed, the RPM (Rounds Per Minute) is 60.
Set your mixer speed to "1" or "2" and do the following:
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. In your case, the correct STIR speed is 60.

KitchenAid... | Answered on Jul 30, 2011

If I have to guess, I think that the motor is still fine. Get a Copy of the
Repair Part List from Kitchenaid.com.
First thing I would do is to check the two Motor Brushes (one on each
side of the Motor Housing). Make sure they are not worn out, and when
inserted, they must both make contact with the Motor Coils. If even
one of them is not in contact with the coils, the motor will not run.
You can also remove the Motor Housing and visually verify that they
are touching the Coils.

KitchenAid... | Answered on Jul 29, 2011

The picture does not depict what your KSM50PR looks like so I will assume yours is a lift-bowl mixer and not a tilt head like the picture shows. I can not find the parts for your mixer however most lift-bowl mixers look the same inside. If yours does not look like the parts diagram please let me know and I will find the correct parts list for your machine. It appears that retaining ring (7) has snapped. It is the retaining ring which attaches to the drive shaft. Here is the parts diagram:


From it you can see how to remove the case cover and access the gear train. You may have to replace the shaft if its groove is worn allowing the retaining ring to slip off.

KitchenAid... | Answered on Apr 17, 2010

Hi FDLISS, sorry to hear about your mixer’s ‘leaking’ issues. KA mixers should never be placed on their sides, or you see what can happen. So how bad is this oil leak problem and what can you do to fix it?
First, if the amount of oil you found leaking was small and if your mixer otherwise works normally with the missing oil you really don’t need to take your mixer apart to refill it. The good news though, is that you can take the mixer apart and refill the grease, if you feel it is necessary.
The internal gears are factory packed with enough grease to last a 'lifetime', whatever that means? Depending on the age of your mixer, where it’s been stored, degree and intensity of usage; all these factors contribute to cause the oil to come out of suspension and seep to the bottom of the transmission box. When you laid your mixer on its side, the oil flowed to the lowest point and found a way out. Gravity is very insidious.
What should you do? Clean your mixer head where the oil came out with a sponge and hot, soapy water (DO NOT immerse your mixer in a sink of hot soapy water, though!) Hopefully it did not come out of your electric motor brush ports (those ‘screw’ heads on each side of your mixer head.)
The inspection and troubleshooting of the inside of your mixer is a DITY capability, particularly if your mixer is out of warranty. Just be sure to have the Parts List manual on hand. If you're lacking one, you can download a PDF version from the KA website at: http://www.kitchenaid.com/flash.cmd?/#/page/home. Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number, in your case use KSM50P, and select the file that matches your mixer under Parts List (4) from the three versions listed.
Turn to pages 4 & 5 for the disassembly and reassembly of your mixer, along with all the parts. It can be messy but gratifying. You might want to reorder the gasket and an ‘O’-ring for starters. Once apart you can check for any other unseemly wear and tear on the gears, etc.
If you think you need to replenish the grease in your transmission, you should use a food-grade grease that you can order online (although I’ve seen automotive bearing grease used too – your call).
Here are five potential vendors in no particular order: RepairClinic.com; mendingshed.com; searspartsdirect.com; partstore.com; and Grainger.com (for grease). You should search for ‘food grade grease’ online (although I’ve seen automotive bearing grease used too – your call). Prices can vary widely between vendors, so do some comparison shopping.
Here are links to three excellent websites that detail the disassembling/reassembly of a KA Mixer.
Between these three websites and their excellent pictures and descriptions and your Parts List manual, you should now be able to completely disassemble, regrease and reassemble your mixer.
Finally, if you feel this is beyond your capabilities and will be too difficult to do by yourself you can take your mixer to a local small appliance repair shop and have them troubleshoot and fix your mixer. KA Customer Care can provide you with the name and phone # of the closest authorized KA repair shop in your area or you can do a Online web search, but be sure to get at least three estimates before deciding to commit to one repair shop.
Good luck. I hope this helps. Howard, Burke, VA
If this solution has helped you, please rate it, thanks! - hslincoln

KitchenAid... | Answered on Feb 21, 2010

It sounds like it got overloaded when you last mixed dough. It will only come off the way it went on. If it has been bent on, it may need a bit of gentle encouragement.

KitchenAid... | Answered on Jan 24, 2010

Can u try it without the attachment and lift the head and relock the head with the side switch to make sure its locked into place. If its not locking it may not run.

KitchenAid... | Answered on Jan 01, 2010

contact kitchenaid in greenville ohio for andthing you might need the factory is there

KitchenAid... | Answered on Jul 28, 2009

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