Warranties - Is there a written warranty?
If there’s a written warranty, it must be made available to you before you buy the item. When you review the warranty, look for the same information buying online as you would buying from a store or catalog:

• What does it cover and how long does it last?
• Whom do you have to contact for repair, refund, or replacement under a warranty?
• Is the seller limiting its liability if the item doesn’t work or causes damage?

Under federal law, the seller must tell you whether the written warranty is "full" or "limited" if the consumer product costs more than $10.

A "full" warranty generally means that you’re entitled to free repair of the product during the warranty period, and do not have to pay shipping, removal, or re-installation costs. If the seller cannot fix the product after a reasonable number of attempts, you’re entitled to a free replacement or full refund.

Any lesser warranty is "limited." As you’d expect, there are more limited warranties than full ones. Nonetheless, they often provide substantial protection and value to a consumer.

If a product is sold "as is" or "with its faults" that means the seller gives no warranty. If the seller "disclaims the implied warranty of merchantability," that means the seller does not promise that the goods are fit for ordinary use. In some instances, the law provides that you must be given this warranty of fitness for ordinary use. Then a disclaimer isn't effective. A lawyer could advise you on when this is so.
(Source: BBBOnline.com)