2. Check the model identifier on the exterior   surface of the packing box is consistent with the purchased model. If no,   contact local dealers or company offices.

3. Check whether the interior surface of packing   box is abnormal, for example, in wet condition, or whether the enclosure of   the VFD is damaged or cracked. If yes, contact local dealers or company   offices.

4. Check whether the name plate of the VFD is   consistent with the model identifier on the exterior surface of the packing   box. If no, contact local dealers or company offices.

5. Check whether the accessories (including the   user manual, control keypad and extension card) inside the packing box are complete.   If no, contact local dealers or company offices.