The vacuum intermittently cuts out when the wand is moved or twisted.

Safety first: Turn off and remove the battery.

Check the wand:

• Detach the wand and inspect both ends for bent or dirty electrical contacts. Clean them gently with a dry cloth.
• Reconnect the wand firmly to the main body and floorhead.
• With the vacuum running (battery installed), gently flex the wand in different directions (do this carefully). If the vacuum cuts out when the wand is moved, the internal wiring is likely broken.
• Replace the extension wand assembly; internal wiring is not usually repairable.

Warning: Do not tape or glue a cracked wand as a permanent fix; this will not restore electrical integrity.