16 ampere fuse triggers.

Unfortunately, I have the saw only today, on 01/02/2015, on. The fuse blows. As yet another customer has described the same mistake I suppose that an assembly error. The return period is yesterday, on 31.01.2015, expired.
Also, I've shredded the cardboard.
Where can I please get the warranty.
Udo Milutzki

Update !!
Before I return the machine with DPD I have the saw again plugged into an outlet that is protected by 20 amps (16 amps normal we have fuses in the house).
It works! When starting / switching with noise and very strong sparks, ie abrasion at the collector.
The return order in DPD, which a helpful service staff [email protected] has initiated, I can cancel.
For the protection of the saw should be noted in the offers 20 amp fuse strength.
Altogether now 3 stars!
Udo Milutzki