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Kenmore A78400 vacuum cleaner & attachment set Parts
Here are the diagrams and repair parts for Kenmore A78400 vacuum cleaner & attachment set, as well as links to manuals and error code tables, if available.
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Browse Parts for A78400 Vacuum Cleaners
Attachment parts diagram
Curved Tube
Part #720800
The manufacturer no longer makes this part, and there's no substitute part
Attachment parts diagram
Dustng Brush
Part #721091
The manufacturer no longer makes this part, and there's no substitute part
Attachment parts diagram
Clip
Part #721323
The manufacturer no longer makes this part, and there's no substitute part
Attachment parts diagram
Hose Trim Ring
Part #721049
The manufacturer no longer makes this part, and there's no substitute part
Attachment parts diagram
Upholstery Nozzle
Part #721092
The manufacturer no longer makes this part, and there's no substitute part
Most common symptoms to help you fix your stand mixers
Choose a symptom to see related stand mixer repairs.
Main causes: bad worm gear, damaged planetary gear assembly…
Main causes: bad wiring connections, faulty speed control plate, electronic control board failure…
Main cause: worn carbon motor brushes…
Main causes: phase control board failure, wiring connection problem, faulty electronic control board…
Main causes: bad lubricating grease, mixer sitting idle for weeks at a time, mixer running constantly for more than 30 m…
Main causes: lack of electrical power, wiring failure, worn carbon motor brushes, bad drive motor, tripped overload swit…
Main cause: attachment clearance setting needs adjustment…
Most common repair guides to help fix your stand mixers
These step-by-step repair guides will help you safely fix what’s broken on your stand mixer.
How to replace a stand mixer worm gear
Here’s how to replace the worm gear in your stand mixer if it’s worn or damaged.…
Repair time and Difficulty
30 minutes or less
How to replace a stand mixer phase control board
The phase control board works with the governor and control plate to control motor speed. Replace the phase control boar…
Repair time and Difficulty
30 minutes or less
How to replace stand mixer motor brushes
If the carbon brushes are worn and damaged, replace them using these steps.…
Repair time and Difficulty
15 minutes or less
Effective articles & videos to help repair your stand mixers
Use the advice and tips in these articles and videos to get the most out of your stand mixer.
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
Learn how to decipher symbols so you can buy the right part for your problem.…
Learn how to use a multimeter to check for wiring problems in an appliance that's not working…
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