A more thorough explanation:

A warrantor is someone who provides a written guarantee or becomes responsible for an implied guarantee. This means that they promise that a product or service will work as expected and if it doesn't, they will fix it or give you your money back.

• When you buy a new car, the manufacturer is the warrantor. They promise that the car will work properly and if it doesn't, they will fix it for free.
• If you buy a new phone and it stops working within the first year, the warrantor (usually the phone company) will replace it or fix it for free.
• If you hire a contractor to build a new deck on your house, they are the warrantor. They promise that the deck will be built correctly and if it isn't, they will fix it at no extra cost to you.

These examples show how a warrantor is someone who takes responsibility for the quality of a product or service. They make a promise to the buyer that the item will work as expected and if it doesn't, they will make it right.