Do not use your mixer arm in a pan on the hob or to chop nuts (almonds, hazelnuts, etc.), raw meat*, or ice cubes* and do not run it in an empty container. * for models with click and mix accessories, these types of use are possible (see instructions for your mixer arm).
After following the instructions in the user manual for starting the appliance, make sure that your electrical socket is working by plugging another appliance. If it still does not work, do not try to dismantle or repair the appliance yourself and take it to an approved repair centre.