Question about KitchenAid KSM50PR Professional Series Stand Mixer
Then motor has plenty of power, and the transmission is working properly, but as soon as we start needing bread the motor speeds up to full speed then quits. The control can then be cycled to stop and the machine started over where it will repeat the same thing. the machine was purchased new just over a year ago. Our family has four other of your machines, one is way over ten years old and none have had this experience. We love our Kitchenaids and regret this trouble.
Before you replace the speed sensor, check that the magnet on the motor shaft is lined up directly under the sensor. I had the Off-HighSpeed-AutoOff issue but once I moved this back in place, it worked again.
Posted on Feb 07, 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.
Posted on Mar 21, 2009
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