speak to the Customer Support Center for further guidance. See “Information resources” on page 59 for more information.
vPower cords, plugs, power adapters, extension cords, surge protectors, or power supplies that are cracked, broken or damaged.
vSigns of overheating, smoke, sparks or fire.
vDamage to a battery (such as cracks, dents, creases), discharge from a battery, or a buildup of foreign substances on the battery.
vA cracking, hissing or popping sound, or strong odor that comes from the product.
vSigns that liquid has been spilled or an object has fallen onto the computer product, the power cord or power adapter.
vThe computer product, the power cord or power adapter has been exposed to water.
vThe product has been dropped or damaged in any way.
vThe product does not operate normally when you follow the operating instructions.
Note: If you notice these conditions with a product (such as an extension cord) that is not manufactured for or by Lenovo, stop using that product until you can contact the product manufacturer for further instructions, or until you get a suitable replacement.
General safety guidelines
Always observe the following precautions to reduce the risk of injury and property damage.
Service
Do not attempt to service a product yourself unless instructed to do so by the Customer Support Center or your documentation. Use only a service provider who is approved to repair your particular product.
Note: Some parts can be upgraded or replaced by the customer. These parts are referred to as Customer Replaceable Units, or CRUs. Lenovo expressly identifies CRUs as such, and provides documentation with instructions when it is appropriate for customers to replace those parts. You must closely follow all instructions when performing such replacements. Always make sure that the power is turned off and that the product is unplugged from any power source before you attempt the replacement. If you have any questions or concerns, contact the Customer Support Center.
Although there are no moving parts in your computer after the power cord has been disconnected, the following warnings are required for proper UL certification.
viUser Guide
