[. . . ] Do not operate appliance with a damaged cord or if the appliance has been dropped or damaged -- until it has been examined by a qualified serviceman. Position the cord so that it will not be tripped over, pulled or contact hot surfaces. [. . . ] Position the cord so that it will not be tripped over, pulled or contact hot surfaces. If an extension cord is necessary, a cord with a current rating at least equal to that of the appliance should be used. Always unplug appliance from electrical outlet before cleaning and servicing and when not in use. Let appliance cool completely before putting away or when replacing lamp. To reduce the risk of electric shock, do not immerse this appliance in water or other liquids. If you need product assistance or service, contact your dealer or: Plug in power cord and turn on. This visual reminder alerts the operator that one or both of the lamps are burned out or missing. The mirror in the open projection head is a front-surface mirror and must not be wiped clean. Remove any surface dirt with a soft brush to avoid scratching the mirror. Clean the outside surfaces of the projection lenses and the stage with 3MtOverhead Cleaner 676 (70-0705-6877-2). [. . . ] Remove any surface dirt with a soft brush to avoid scratching the mirror. Clean the outside surfaces of the projection lenses and the stage with 3MtOverhead Cleaner 676 (70-0705-6877-2). [. . . ]