This article contains the Troubleshooting Guide for the NV680UK/NV681UK Series Shark® Corded Vacuum with Powered Lift-Away™. This supports the following product SKUs NV680UKCO, NV680UK, NV680UKT, NV681UK and NV681UKT. Please note this also supports the refurbished SKUs NV681UKREF and NV681UKREFB.