KitchenAid KHM512ER Troubleshooting

Mixer doesn't turn on when I adjust the speed knob.

Plug in another appliance to check that the outlet is working. If it’s not, connect the power cord to an energized outlet.

Check that the wires connected to the circuit board are not corroded or broken. If it appears broken or damaged, you may need to replace the cord. See our guide on how to replace the power cord.

If the mixer will not turn on at all, the motor might be bad. Check out our guide on how to replace the motor.

The mixer is making noise when in use.

Food or other objects may become lodged inside the mixer during use. To remove the foreign object, you’ll need to open the case. Follow steps 1-4 of our power cord replacement guide to open the mixer, while inspecting for foreign objects. After you’ve located the object, remove the object with a pair of tweezers or other tool.

A lack of lubricant could be causing the mixer to rattle or make noise. Follow steps 1-4 of our power cord replacement guide to expose the gears. Once you’ve located the gears, apply a food-safe lubricant to the gears. Spread the lubricant onto all the gear teeth you can reach. Be careful not to over apply the lubricant to minimize leaking.

When I place the beaters in the mixer they fall off.

Make sure that the each beater is placed into the correct slot and pushed until a ‘’click’’ is heard.

Before inserting the beaters into their slots observe if the tabs on the beater are broken or damaged. If they are damaged or broken the beater needs to be replaced. Replacement beater’s can be purchased online from KitchenAid’s website.

If the beater does not stay in the mixer, the ring that holds the beater in its position may need replacement. Check out our guide on how to replace the beater rings.

The beaters do not eject when you press the eject button.

Before inserting the beaters into their slots observe if the tabs on the beater are broken or damaged. If they are damaged or broken the beater needs to be replaced. Replacement beater’s can be purchased online from KitchenAid’s website.

If the beaters will not eject when the button is pressed, the eject button spring may be damaged. See our guide on how to replace the eject button spring.

The switch doesn't move or doesn't adjust the speed of the mixer.

Investigate if the switch for speed control is cracked or shattered. The switch may need to be replaced. Follow our switch replacement guide.

If the switch doesn’t appear damaged, but is not moving it could be stuck. To remove and replace the switch, see our switch replacement guide.