Question about Food Mixers
IN MY OPINION I THINK THE PROBLEM LIES AT THE CIRCUIT BOARD, PERHAPS THE SPEEDCONTROLLER. DOES THE ELECTRIC MOTOR WORKS WITH AC OR DC POWER AND AT WHAT VOLTAGE RANGE?
Posted by Anonymous on
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Posted on Jan 02, 2017
I had the same problem. Had to strip the machine down to get to the motor. On the top is a moving plate with various capacitors etc mounted. On the front side there was a Capacitor (At least I think it was) with the wire broken.
I resoldered it and the machine now works fine.
I hope this helps
Posted on Jul 05, 2008
SOURCE: Speed Control Unit test?
Take off the back cover. there should be 2 screws on top of a piece of metal, 1 on bottom. Start on turn. it should go about 1x a second. Turn the top scrws. Then go to 6. it should be 3x a second. Use the bottom screw to adjust that. When turn and 6 are corrrect, all other sppeeds are right. There might be something else in between the back cover and the 3 screw panel.
Posted on Aug 19, 2008
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.
Posted on Mar 21, 2009
I have the same problem after running for a while, turning off then back on. It will not start. I found the heat sink fuse in the motor was burning out. When the motor gets hot then turned off, no fan and the heat build up enough to melt the heat fuse. It would be an easy replacement if I could find where to get them. To find it on the motor, look at the wire going from one corner of the motor to another, but looks like it goes into the motor in between. Pull on that going into the motor to lift the heat fuse out.
Posted on Apr 11, 2009
hi this is how are you going to isolate if where is the problem since totally dead set and no sign of obvious defective part. you need test voltage with the use of digital tester from ac line going to the ac to dc converter board check if their is a output dc voltage which supply dc voltage to the motor their might be a defective rectifier diode or regulator.you will notice if their is led speed display that means their is a supply. now another recommendation to check if your motor is good if you have a 12v adapter supply you can supply the motor just to know if it is good. hope it will help you to trouble shoot the unit good luck thanks.
Posted on Jul 04, 2011
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