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Kitchenaid Hobart K45SS when set at 1-2 accelerates to high speed when making dough. How can I fix this?

When doing a second batch of dough it will not run on speeds 1 or 2 but accelerates to high speed. It's no problem when making one batch of dough, or cake batter, or whipped cream though. What is the problem and how can I fix it? Kitchenaid Hobart K45SS Mixer

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  • KitchenAid Expert
  • 134 Answers

Usually when the mixer runs only on high speed it is caused by the control plate adjusted incorrectly or the control plate spring unhooked. Remove the trim & end cover on the mixer and check the control plate spring, if unhooked, attach to bottom of the control plate and squeeze the spring end, also check the speed control plate screws,there are 3 screws on this plate, one at the bottom two at the top, see if adjusting the top screws slows your mixer down.
Next check the wiring of the mixer, Insure everything is wired correctly, to get wiring diagram go to the last page of the service manual. Here is a link to the service manual: http://lib.store.yahoo.net/lib/mendingshed/kitchenaidservicemanual.pdf
If neither of those fixes the problem it is probably a bad phase control board, or a shorted phase control board. With the line cord disconnected, pull the t-bar contacts to open and insert a piece of paper between them so they cannot close. Reapply power-the mixer should just run or buzz trying to run, if it operates at full speed the phase control is defective and needs to be replaced.
Use the service manual to aid you in taking apart the mixer, trouble shooting the problem and putting the mixer back together, based on the mixer only running at high speed some of the time I would assume it is the speed control phase board.
If you have any questions let me know.
Thank you,
Colleen
Customer Service
MendingShed.com

Posted on Apr 30, 2013

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SOURCE: Motor runs only at slow speed, higher speed buttons still run at slow

The company handles these as Blendtec now. The web site is at http://www.blendtec.com/default.aspx Maybe this will help:

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Posted on Feb 09, 2008

ricardok45
  • 135 Answers

SOURCE: k45ss kitenaid mixer surges at low speeds

Hi. Go to mendingshed.com and download their free Kitchenaid Service Manual. This valuable document will help you to tune up your mixer, and covers the K45SS model. They also sell kitchenaid parts.

Go to kitchenaid.com and search for a parts manual for your mixer. Enter your model# thusly k45sswh.

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

Posted on Apr 14, 2009

hslincoln
  • 235 Answers

SOURCE: my mixer master (Accolade 400) will only run at top speed

Hi JENNY, Merry Christmas and Happy New Year! Do not despair; there is a way to fix your KA mixer. From the symptoms you’re describing is sounds like your mixer’s (speed) Control Assembly and/or the Hall Effect Sensor has gone bad and either one or both parts need to be replaced.
As your mixer is out of warranty, the inspection and troubleshooting of the control assembly is something you can do yourself, particularly if your mixer is out of warranty. Just be sure to have the correct Part List manual around when you start to disassemble your mixer.
If you're lacking one, you can download it from the KA website at: http://www.kitchenaid.com/flash.cmd?/#/page/home
Click on Customer Care>Locate Manuals & Guides, and enter the 6 character model number, in this case, KN15E1X, and then select the first file, KN15E1XBW0.pdf (335.24 KB)
that appears under Parts List (17). (check to see if this matches your mixer model).
Turn to pages 4 & 5 titled, "Case, Gearing and Planetary Assembly", which provides an exploded view for the assembly and disassembly of the mixer and locate Illus. Nos.8 & 9, Control Assembly and Hall Effect Sensor, respectively. I suspect one or both of these parts that are the cause of your mixer’s speed woes. Since the (speed) Control Assembly is the more complicated of the two, that’s where I’d focus my attention. The Hall Effect sensor is a very simple device and rarely goes bad.
First check to see if any of the connections have come loose from your Control Assembly. If everything looks tight then you need to replace it. Unfortunately the whole controller assembly is on a little PC board filled with resistors and capacitors, 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.
As far as parts go, here are four potential vendors in no particular order: RepairClinic.com; mendingshed.com; searspartsdirect.com; partstore.com. Prices for the same part can vary widely between vendors, so do your comparison shopping.
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.
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 has been helpful, please rate it, thanks! – hslincoln

Posted on Jan 04, 2010

hslincoln
  • 235 Answers

SOURCE: Motor now has two speeds: off and 10 (highest) -

Hi REEDKL, Merry Christmas and Happy New Year! Based on your mixer’s symptoms, my first thought is that your mixer’s internal controller assembly (the speed knob), has gone bad. The inspection and troubleshooting of the control assembly is something you can do yourself, particularly if your mixer is out of warranty. Just be sure to have the correct Part List manual around when you start to disassemble your mixer.
If you're lacking one, you can download it from the KA website. Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number, in this case, KP26M1, and then select the last file: KP2671XWH3.pdf (325.07 KB) that appear under Parts List (21). Check to see that it matches your mixer model.
Turn to page 4, Case, Gearing and Planetary Assembly and locate Illus. #8, Control Assembly. This is what you’re looking for when you get the top (Illus. #1) off the mixer head.
First check to see if any of the connections have come loose. If everything looks tight then you probably need to replace it. Unfortunately the whole controller assembly is on a little PC board filled with resistors, capacitors and diodes, which was not meant to be 'home fixed' and where my ‘electronic expertise' ends. 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.
Although you don’t need to get further inside your mixer to make this repair, here are some links to several excellent websites that detail the disassembling/reassembly of a KA Mixer that you might want to keep in your ‘toolbox’, should you have to delve inside your mixer in the future. The mixers displayed in the links may be different than your KA model, 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 replace any part to your KA mixer.
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 and have fun. I hope this helps. Howard, Burke, VA
If this solution has helped you, please rate it, thanks! - hslincoln

Posted on Jan 04, 2010

Testimonial: "This is great information! I never expected to find help like this. Will move on it. Thanks!"

justinbur167
  • 257 Answers

SOURCE: I have a Hobart KitchenAid Mixer Model K45SS and

Hello Mayfix,

The problem with your mixer is the speed control switch, this switch is located at the back of the unit. It is usually black and has all of the wires coming into it, the Item # 1394070 and cost $27.95 it can be located at RepairClinic.com he is a link
http://www.repairclinic.com/Kitchenaid-Switch-Parts?z=100&gclid=CKSD5NriuKcCFUVqKgodIE2b_g

You will have to adjust after you install you will adjust the two screws at the top of the switch while the machine is running inorder to make sure that you are getting all the speeds. Be careful as there is a possibility of electrical shock if you touch the wronge thing.

Thank you for using FixYa.

Posted on Mar 06, 2011

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Kitchenaid K45 Mixer will only run at one speed, fast


is it a K45 or a K45SS? If it is a K45 you will have to replace the filters inside and probably the speed control plate, if it is a K45SS then you need a new phase control board. The K45 is pre 1978 and the K45SS is post 1978. Your information is correct on pre 1978 K45 models that the capacitor is bad, but it might be cheaper to go garage sale hunting and find a second machine as the parts are no longer made and having spares on hand may be a significant advantage in the future, also there are a great many of the K45SS parts that will also repair the K45 mixer so it may not be a practical solution. Watch ebay regularly for K45 parts, they come up every couple of months. On the parts diagram also look for the K5 diagram as it is identical to the K45, one is a 5 quart mixer and the other one is 4.5 quart, same parts same motor same everything.

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My classic KA mixer will not start on speed position one or two. It will start if I move the the speed knob to 3 or 4. I then can use any speed. This isn't normally a problem unless I forget and start...


The K45SS is very similar to the 5-qt. tilt-head Artisan Stand Mixer.
You need 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 all be adjusted. 1. Loosen the lock nuts enough & Turn the 2 top screws clockwise until they cannot be turned
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Hi, We have a 3phase Hobart D300 Mixer onboard and the cooks are complaining that there is not enough grunt. I have checked the 3 speeds and they are working finee however when dough is being mixed it...


Hello Veelec,

As the machine is mixing dough it seems that it is getting sluggish. This is caused by the machine being over loaded. Although it is a 30 qt mixer that is for liquid filled capacity. I do not know what kind of dough you are mixing so I will give you a light to medium dough and then the heavy dough capacity. Also on this machine all dough should be mixed in speed 1 or low to keep from damaging the machine.

You will need to know the Absorption Rate (AR) of you dough, to find this you take the weight of the water divide the weight of the water and multiply by 100.

AR = Water Weight / Flour Weight x 100%

The higher the percent the higher the capacity the lower the percent the lower the capacity. Also the temperature of the water will have to be considered as the colder the water the harder the dough it is to mix the dough the batch should be reduced by 15% to 20% for water temperature between 65-75 degrees.

For a Light to Medium dough with a 60% AR the unit capacity is 45 pounds in first speed.
For a Heavy dough at 55% the units capacity is 30 pounds in first speed.

The above capacities are for bread doughs, if you are doing pizza dough, dough nut dough or wheat dough please post back to this thread and I will help you to find the capacities.

I hope that I have helped you with your problem and would like to thank you for using FixYa to find a solution to your problem.

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I have a Hobart KitchenAid Mixer Model K45SS and it runs fast on low (Surges speeds up and down)what is causing this problem


Hello Mayfix,

The problem with your mixer is the speed control switch, this switch is located at the back of the unit. It is usually black and has all of the wires coming into it, the Item # 1394070 and cost $27.95 it can be located at RepairClinic.com he is a link
http://www.repairclinic.com/Kitchenaid-Switch-Parts?z=100&gclid=CKSD5NriuKcCFUVqKgodIE2b_g

You will have to adjust after you install you will adjust the two screws at the top of the switch while the machine is running inorder to make sure that you are getting all the speeds. Be careful as there is a possibility of electrical shock if you touch the wronge thing.

Thank you for using FixYa.

Jul 04, 2010 | KitchenAid K45SS Classic Stand Mixer

1 Answer

K45ss kitenaid mixer surges at low speeds


Hi. Go to mendingshed.com and download their free Kitchenaid Service Manual. This valuable document will help you to tune up your mixer, and covers the K45SS model. They also sell kitchenaid parts.

Go to kitchenaid.com and search for a parts manual for your mixer. Enter your model# thusly k45sswh.

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

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Hi Susan. There is no worse feeling than the feeling you get when you find that you've been seperated from your hard-earned money by a company that markets a product with glowing phrases of what their product can do...And then doesn't deliver on it's promises. Kitchenaid mixers can make short work of bread dough NOT! My Kitchenaid HD Pro (475 watts) self destructed after only 30 uses of making my Sourdough Bread. The problem? A cheap piece of plastic that takes the stresses of two important shafts in the mixer. Cheap, shoddy parts in a mixer you paid top dollar for. Kitchenaid shows no shame in doing so.

What is happening with your mixer as it tries to mix your dough is that the head unit is thrust back and forth and side to side (bucking). Eventually hinges become loose and sloppy. Kitchenaid's behaviour is legal and beyond reproach, so make your next mixer purchase an informed one.

Goto www.consumeraffairs.com and do a search for your Kitchenaid model. You'll notice that you're not alone in your mixer troubles.

I solved my mixer problems by buying a used Hobart 20qt. Commercial mixer (A200) and rebuilt it. When mixing heavy dough you should only use about 60% of the bowl capacity. less, if your mixer is agonizing with the amount of food in the bowl..

You will be able to replace the thumb screw. Be prepared to wait for at least a month for the part to arrive once ordered.

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

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Did this happen when mixing a big batch of dough or when something fell in the bowl that shouldn't have?

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