Question about KitchenAid K45SS Classic Stand Mixer

1 Answer

I have a 275W Classic Plus, about 5 years old. I've never done any maintenance on it. It gets used several times per week for the basics (banana bread/cake batter, cookie dough) and also at least once a month for ice cream. This year, Ihave been also using about twice a week for bread dough. The motor has started making a grinding noise and the unit shakes while mixing. Where should I start as far as troubleshooting? Thanks for your time!

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  • KitchenAid Master
  • 1,231 Answers

There are lots of places to be looking, first thing I would look at would be under the rear cover to make sure the two nuts that hold the rear motor bearing housing in place are nipped up. You don't wring the neck on these nuts, if you over tighten them you will deform the rear bearing housing.
If you can find someone local who has been doing these mixers for a while they will be able to give it a once over. It's unlikely to be expensive. Best people to ask is Kitchen Aid, they should know who does their warranty work in your area. If you are in new Zealand it will be me.

Posted on Jul 02, 2017

6 Suggested Answers

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Posted on Jan 02, 2017

  • 274 Answers

SOURCE: Grinding Noise

If it's metallic sound you are loosing teeth on a gear or two.  This is caused by lack of lubricant or simply fatigue of the material of the gears.  Don't use it, you can get metal flakes in your food.

Take it in to a repair shop and have it fixed.  The money spent is well worth it because if done correctly will last another 12 years.

Posted on Oct 23, 2007

  • 45 Answers

SOURCE: Kitcchen Aid mixer making a grinding noise

common problem. Worm gear & bracket #PS734273 about $36.

Posted on Nov 05, 2007

clyde2j2
  • 137 Answers

SOURCE: bread dough hook slips when mixing

This is not a solution but I think you have a serious problem you might have sheared some gear teeth whent the mixer jammed and it only manifests itself under a heavy load, I would take it to a repair guy, those mixers are expensive and it would be worth it.

Posted on Mar 28, 2009

  • 145 Answers

SOURCE: is 300 w mixer powerful enough to mix bread dough?

Your mixer is easily able to handle the kneading of bread dough. Please advise:

9 cups of all purpose white flour, maximum.

6 cups of specialty flour, maximum. This is any flour besides all purpose white.

Bread doughs are only to be needed on speed 2, and never for longer than 7 minutes.

This is all stated in the Use and Care guide for the mixer itself. If these guidelines are not followed, it may lead to a product failure.

Posted on Jul 07, 2009

hslincoln
  • 235 Answers

SOURCE: Lack of use is not the cause of the leaking of oil

Hi BESTATTI2UD. Your KA mixer’s internal gears are factory packed with enough grease to last a lifetime, whatever that means? Depending on the age of your mixer (7 years), where it was stored and how heavily it’s been used; these factors all will eventually cause the grease’s base oil to separate from its additives, with the resultant oil seeping from openings beyond the gasket down the agitator shaft, which is the situation you are experiencing now with your mixer. Gravity can be very insidious. To answer your primary question after 7 years it’s time for some TLC maintenance on you mixer, and yes, you can fix this yourself at home.
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. Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number, in your case use KSM150P, and select this file, KSM150PSWH0.pdf (773.44 KB),
under Parts List (61) (check to see it matches your mixer model).
Turn to pages 4 & 5, titled: Case, Gearing and Planetary Unit, which provides an exploded view for the disassembly and reassembly of your mixer, along with all the parts. You may want to order Part #19, transmission case gasket, and some food-grade grease for starters. Once apart you can check for any other unseemly wear and tear on the gears, etc. It can be messy but very gratifying.
When you re-grease your transmission I recommend using a food-grade grease that you can order online (although I’ve seen automotive bearing grease used too – your call). As far as parts go, here are five potential vendors in no particular order: RepairClinic.com; mendingshed.com; searspartsdirect.com; partstore.com; and Grainger.com. You should be search for ‘food grade grease’ if you start digging into the transmission. Prices can vary widely between vendors, so do your comparison shopping.
Finally, here are some links to several excellent websites that detail the disassembling/reassembly of a KA Mixer. The mixers are different models than yours, but the principles are the same.

Between these three websites and their excellent pictures and descriptions and your Parts List manual, you should now be able to completely disassemble and reassemble your mixer, should you decide to go that route.
If you feel troubleshooting and repairing is beyond your capability, then I would seek out a local small appliance repair shop in your area. KA Customer Care can give you names of local KA authorized repair shops in your area, but you can also do an online search to supplement what KA may provide you. Call to explain your circumstances and find out their hourly rate and get an estimate of what they think it would cost to repair your mixer. Also, always obtain three or more estimates – do some comparison shopping.
Good luck and have fun. I hope this helps. Howard, Burke, VA
If this solution was helpful, please rate it, thanks! - hslincoln

Posted on Dec 13, 2009

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My 20 year old classic k5ss mixer overheated and now won't work at all. Replaced with a 600 but hate to throw it away. Thanks for any help.


Hi HAMMERSANDCO, Merry Christmas and Happy New Year! Don’t have to throw your old K5SS away. It may be time for some TLC maintenance on the old mixer that could return it to good working order to run alongside your new mixer.
From the symptoms you described, it sounds as if your control plate assembly and/or phase control board has gone bad (possibly as a result of the overheating…electrical components can be very sensitive to extreme heat). The good news is that this can be fixed quite easily (OK, maybe a little effort) by yourself, if you are a DITY type person and feel adventurous. Be sure you have the Parts List manual on hand. If you're lacking one, you can download a PDF version from the KA website: 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 (Your K5SS mixer falls within this manual), and select the first file KSM50P.pdf (438.31 KB) listed under Parts List (4) and then check to verify this matches your mixer model.
Turn to pages 6 & 7, titled “Motor And Control Parts”, which provides an exploded view for the disassembly and reassembly of your mixer’s electrical components, along with all the parts. You’ll want to focus on Illus. No. 36, Control Plate Assembly and Illus. No. 39, Phase Control Board
Unfortunately the controller assembly is fabricated on a little PC board which was not meant to be 'home fixed', and my 'expertise' ends there. A local small appliance repair shop should be able to determine if the controller assembly is functioning properly or not, or you can just order replacement parts without the testing.
While you’ve got your mixer this far apart you should check for any other unseemly wear and tear on the on the gears and other components. Turn to pages 4 & 5, titled: Case, Gearing And Planetary Unit for the disassembly and reassembly of your mixer, along with all the parts. You’ll have to remove all the grease from the mixer head and gears. Once de-greased, pay particular attention to Illus. No. 58, Worm Gear Bracket & Gear, including Illus. No. 12, Worm Gear (23 teeth). This is the KA fail-safe gear that is supposed to strip to prevent your mixer going ‘up in smoke’ when it is overloaded.
If you’ve never replaced the mixer grease in 20 years, you’ve be rewarded by KA with a gem of a mixer. Can you imagine driving your car and not getting it lubed in 20 years?
You can order a replacement parts and install it yourself. Besides a replacement control assembly and grease you might consider replacing the gasket, and “O”-ring too. You should use a food-grade grease that you can order online (although I’ve seen automotive bearing grease used too – your call). Do not try to reuse any original grease as may contain contaminants.
Here are five potential vendors in no particular order: RepairClinic.com; mendingshed.com; searspartsdirect.com; partstore.com; and Grainger.com. You should search for ‘food grade grease’. Prices can vary widely between vendors, so do your comparison shopping.
It can be messy but quite gratifying to diagnose and repair your mixer yourself.
Finally, here are some links to several excellent websites that detail the disassembling/reassembly of a KA Mixer. The mixers displayed in the links are different KA models, but the principles are the same.
Between these three websites and their excellent pictures and descriptions and your Parts List manual, you should now be able to completely disassemble and reassemble your mixer, should you decide to go that route.
If you feel this repair is beyond your capability, then I would seek out a local small appliance repair shop in your area. KA Customer Care can give you names of local KA authorized repair shops in your area, but you can also do an online search to supplement what KA may provide you. Call to explain your circumstances and find out their hourly rate and get an estimate of what they think it would cost to repair your mixer. Also, always obtain three or more estimates – do some comparison shopping.
Good Luck. I hope this helps. Howard, Burke, VA
If this solution was helpful, please rate it, thanks! – hslincoln

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I am unable to remove housing cover of Kitchenaid Mixer #K45SSWH


Hi. Goto www.kitchenaid.com and do a search for your model#. Look for the manuals tab, locate and download the parts list for your mixer. These drawings will assist you with disassembly and reassembly. Remove the Planetary assembly by driving out the single pin that holds it to the mainshaft. Clean and regrease it too.

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I recommend using Chevron FM ALC EP-2 food grade grease, and after 5 years or so when it begins to drip, if you get a few drops in your bowl it won't matter much, in comparison with a petroleum grease that you shouldn't eat at any time.

Goto www.mendingshed.com and find their free Kitchenaid Service Manual and download it. This manual covers your mixer.

Regreasing your mixer isn't difficult, it is however, very messy to clean and regrease, so keep plenty of paper towels, rags, etc. handy. Latex or rubber gloves will help.

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

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1 Answer

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Why do I see oil leaking from the beater shaft of my stand mixer?
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Try running yours on full blast for 5 minutes with something simple in the bowl. If its a 250 watt or higher make whipped water out of 2 cups of water and a tablespoon of cornstarch. Run it till you get what looks like whipped cream. Oh yea. Use the Balloon whip. The lubrication in the motor is supposed to last for at least 5 years but I have seen on numerous post's that if you run them on all the way for at least 5 minutes the oil will even out in the motor. Running the mixers at low speed alot will cause the oil inside not to move as freely since the motor doesnt heat up the oil in the gears.

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Grinding Noise


If it's metallic sound you are loosing teeth on a gear or two.  This is caused by lack of lubricant or simply fatigue of the material of the gears.  Don't use it, you can get metal flakes in your food.

Take it in to a repair shop and have it fixed.  The money spent is well worth it because if done correctly will last another 12 years.

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Kitcchen Aid mixer making a grinding noise


common problem. Worm gear & bracket #PS734273 about $36.

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