A blender offers convenient and efficient ways to mix and break down certain foods. They're especially helpful for liquids such as smoothies and shakes. KitchenAid sells several blender models and their designs often include indicator lights on the base on the appliance. If those lights start blinking, you might have a problem with your blender.
In some KitchenAid blender models, all of the indicator lights blinking at the same time can mean that the blender is overloaded. To avoid damage, the blender automatically shuts off when the items in the jar are too heavy to blend. Turn the blender to the "off" position, open the jar and remove some of the items you have in it to blend the items in smaller batches. Put the jar back in place. If the lights have stopped blinking, your problem is fixed.
Blenders can also get jammed, making the blending arms unable to turn and mix the contents of the jar. If your KitchenAid blender's indicator lights are blinking alternately, this could be the problem. To fix it, turn the blender off and open the jar. Break up or remove the contents at the bottom of the jar to free the arms. If the lights go back to normal after you replace the jar on the base, the problem is solved.
Sometimes the blinking lights on your blender aren't error indicators at all. If a problem exists with the electricity flowing through the outlet you've plugged your KitchenAid blender into, it could cause blinking lights. A short in the circuit or damage to the outlet could be the culprits. Try plugging your blender into another outlet to test it. If the lights stop blinking, the outlet might be the cause of the earlier problem.
Defer to Your User Manual
Without knowing the model number of your KitchenAid blender, it's difficult to be specific about what the blinking lights on your base mean. However, your user manual that came with the purchase often has instructions on what the indicator lights mean and how to solve the problem. If you don't have your user manual, contact KitchenAid directly for support.