I would recommend that you first check the Hall effect sensor which determines the speed. I had this exact problem (but mine occurred with a 600 professional model) 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 blender worked as good as new! But I was curious to know if my original sensor was 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 my original Hall effect sensor except the connection between the control board and sensor was not adequate--unfortunately I didn't check the connections before I decided to buy another one. 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. 2. You'll need a phillips head screwdriver to open up the mixer. 3. Make sure that the connection between the control board and sensor is absolutely tight and snug. 4. Also, make sure that the orientation of the sensor connection between the control board and sensor is correct. it's hard to know which way the sensor should be connected because the control board has three prongs and the sensor can attach facing up or facing down. If, after you've made the connections, the mixer still doesn't work. Disconnect the sensor and reconnect it with the prongs facing the opposite direction and try it. I actually found the right orientation through trial and error. By going through this trial and error, I also had my Eureka moment when I realized that the original sensor probably would also work it were reconnected with correct orientation. 5. This whole process probably takes less than 10-15 minutes to perform.
SOURCE: I have a KitchenAid Pro 600 stand mixer, and it
It appears that you've got some internal transmission gear issues, and a situation similar to my wife's mixer, which we got new in Dec 2006. It could be as simple as the gears have become loose and are making different contact, hence the noise. The higher the speed, the louder, higher pitched sound you'll get. It may also be indicative of a potential gear failure (after all our increasing noise, the bevel gear broke and the mixer 'froze'). If your mixer is under warranty, contact Kitchenaid. If it's out of warranty, then take it apart and do a diagnostic exam of the gearing. Whatever you find you should be able to fix yourself. Be sure to have the Kitchenaid Part Manual (Part No. 8212278 Rev D) on hand if you attempt to disassemble yourself. It also lists all the parts so that you can determine, which parts, if any have failed. You'd think that the Kitchenaid name would warranty their mixers for a lifetime... So much for quality in America today!
SOURCE: My kitchenaid ksm150ps standing mixer's top seems
Hi DENISE, by the symptoms you describe it appears that
it’s time to adjust your mixer’s Beater to Bowl Clearance adjustment screw, or head
locking mechanism (or a component) of it is worn or loosened due to normal wear
and tear and needs to be readjusted (or repaired) to keep your mixer head
stationery and level.
The
instructions for adjusting your beater to bowl clearance are located in your
Owners Manual. If you don’t have the
original manual you can easily download a PDF version of your Owners Manual
from the KA website: (http://www.kitchenaid.com/flash.cmd?/#/page/home).
Click
on Customer Care>Locate Manuals&
Guides> and enter the 6 character model number, in your case KSM150 and
select the file listed for your model that
appears under Owners Manuals (66) KSM150PSER1.pdf (732.33
KB) and save that file to your PC. Turn to Page 14 and you will find the
instructions for adjusting the mixer head height.
But
to save you some time, I have extracted the instructions below:
Beater
to Bowl Clearance
Your mixer is adjusted at the factory so that the flat beater just clears the
bottom of the bowl. If for any reason, the flat beater hits the bottom of the
bowl or is too far away from the bowl, clearance
Tilt-Head
models
• Unplug mixer.
• Lift motor head.
• Turn screw (A) SLIGHTLY counter clockwise (left) to raise flat beater or
clockwise (right) to lower flat beater.
• Make adjustment with flat beater, so it just clears surface of bowl.
If you over adjust the screw, the bowl lock lever may not lock into place.
If the above doesn’t correct your problem, then you
need to look at the Link & Lever Latch assembly. If you don’t have your parts list manual,
select the file KSM150PSWH0.pdf (773.44 KB)
listed under the Parts List Manual (61).
The manual
provides an exploded view for the disassembly and reassembly of your mixer,
along with all the part names and numbers.
Turn to page5, titled: Base and Pedestal Unit. You’ll want to focus on Illus. #11, Link
& Lever Latch assembly, and the related components, which locks the mixer
head to the pedestal when you run the mixer. Check to see if something is just
loose, exceedingly worn or broken. If
something has broken, you can order replacement parts and install
yourself.
Here
are five potential vendors in no particular order: RepairClinic.com;
mendingshed.com; searspartsdirect.com; partstore.com; and Grainger.com. Prices can vary widely between vendors, so do
your comparison shopping.
Also,
while your mixer is apart it would be ideal to check for any other unseemly
wear and tear on the gears, etc. It can
be messy but quite gratifying to diagnose and repair your KA mixer yourself.
Finally,
here are some links to several 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, repair,
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
SOURCE: KitchenAid Artisan KSM150BOB Stand Mixer won't start
It could be very easy. It maybe you have a the brush in the
wrong way round or they have simply run out. They are on the sides under the black plastic caps. Although they will fit in the hole any one of 4 ways
round, there is a key on one corner which means it will only go in one
direction. Use a torch to look into the hole before you put it back in.
They shoud look like this : brush
SOURCE: mixer head loose
Referring to the diagram on:
http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%20W10157992.pdf
Remove the screw, item 22, to remove the trim band around the mixer. This will reveal 4 screws which hold the top cover on. Remove the screws and lift the top off. Find all the screws which hold the gearhead in place and tighten them all. If you want to make the fix a permanent one put some thread-loc compound on each screw and tighten it.
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