This article contains the Troubleshooting Guide for the BL450 Series Nutri Ninja® Blender. This includes the following SKUs: BL450, BL450C, BL451, BL451BL, BL454QAQ, BL454QBL, BL454QCN, BL454QGN, BL454QO, BL454QPL, BL454QR, BL454QST, BL454QVO, BL454QY, BL455 and BL456BRN.