Empfhelen value up to the small manufacturing defects

Product was delivered very quickly and in perfect condition.
First I got a call from Amazon to the delivery clarified, although it would not have been necessary. Half an hour before delivery, I was then called again by those who have supplied the stove.

Unfortunately, no longer went to about 2 months, the rearmost small hotplate and two weeks it also the foremost. In the manual I found a phone number from technical services. After about a week then came a friendly gentleman and fixed it.
He said that it is a manufacturing defect. Right there where you infects the hob at the stove, the contacts were slipped inside. But since it is a manufacturing defect, which cost me nothing this.