This article contains the Troubleshooting Guide for the NV200 Series Shark® DuoClean™ Slim Upright. This supports the following SKUs: NV200, NV200C, NV200Q, NV201, NV202, NV202C, QU201QBL, QU202QBL, QU202QPL, QU202QRD, QU202QS, QU203QBL, QU203QPL, QU203QRD and QU203QS.