This article contains the Troubleshooting Guide for the NV690UK / NZ690UK Shark® Corded Vacuum with Powered Lift-Away™. This supports the following product SKUs NV690UK, NZ691UK, NV690UKT, NZ690UK, NZ690UKT and NZ690UKTSB. Please note this also supports the refurbished models NZ690UKREF, NZ690UKREFB, NZ690UKTDBREF, NZ690UKTDBREFB, NZ690UKTREF and NZ690UKTREFB.