Any appliances that we buy come with a user manual. We read it to know how the appliances work. What are the solutions for a problem if the appliances doesn't work.
Finally, if what we do according to the manual doesn't work, we the appliances back to the store we purchase it. Get it repaired or change a new one.
Many times, we will be asked to come again once it is repaired but if we are very persistent, acknowledged our customer rights & know the terms & regulations, we end up getting a new appliances.
Why I say this ? In our life we have been given a manual too ....... Bible
Each day read it, understand it, acknowledged it, follow the rules ( our Ten Commandments) and face this world with boldness so that , we need not to be repaired, but we are freshly made each day and cleanse by the blood of our Lord Jesus Christ .