On both heating elements there is a safety switch that ensures that the heating element does not get hot if it is not properly mounted on the outer pan.
Make sure that the heating element slides exactly into the guide of the outer pan so that the safety switch is pressed and activated.
The reset button can be found on the back of both heating elements. The reset button can be activated by inserting the enclosed stick or another thin object (e.g. skewer) into the hole and pressing it.
If you follow this procedure, we are convinced that the deep fryer will work perfectly and you will have a lot of fun with it.