The most important thing is to follow manufacturer recommendations for basic care for countertop mixers.
There can be buildup around the planetary where the mixing paddles and attachments connect to the unit. Keep this clean so nothing lands in the food that shouldn’t be there. Never submerge these units in a sink, or you might damage the motor, electronics, etc.
Use warm water and a mild soap or detergent to wash and rinse the mixer after each use. Wash, rinse and sanitize attachments either in a 3-compartment sink or dishwasher. If there are motor air vents, keep them clear and clean since heavy loads can cause the mixer to run hot.
Countertop mixers are not like floor models as they don’t have transmission gear boxes with oil that needs draining.
The biggest thing that can negatively impact any mixer is overloading it. This occurs when operators don’t buy the right size or push the limits, which shortens the service life. Units used for higher volume or heavier mixes also will wear out quicker.
If the operator is noticing excessive noise or a grinding sound, this indicates a problem and servicing will be required. Also, if the mixer is bogged down or doesn’t turn when it’s underloaded, this signals trouble. Service is needed if there are grease or oil leaks.
The average service life of a countertop mixer varies, depending on the type of unit and whether it’s a high-end or low-end line. It typically ranges from 2 to 10 years.