A:
Hi,
A vacuum type sound and suction when the door closes is a normal part of this unit’s design as the unit attempts to ensure there is an air tight seal for the protection of your food. The other sounds you are experiencing from the appliance are as well normal due to first time use but will fade within time. If you feel that the sounds you are experiencing are not normal and the performance of the appliance is being effected, do not hesitate to contact us (the manufacturer) directly for further assistance.