Vacuum shows E14 and emits a burning smell or visible sparks from motor area before shutting down

Safety first: Immediately switch OFF the vacuum, remove the battery, and move the unit to a safe, ventilated area. Do not attempt to restart the vacuum.

• 1. Visual inspection: After the unit cools, open the housing and inspect the motor and control board for burn marks, melted insulation, or foreign objects.
• 2. Remove foreign objects: If you find screws, nails, or metal shavings inside the motor compartment, carefully remove them. However, if the motor has already shorted, removal alone will not fix the damage.
• 3. Do not bypass protection: Do not attempt to bridge fuses or bypass safety circuits to get the vacuum running again.
• 4. Replace damaged components: A motor that has shorted or shows heavy burn damage must be replaced as a complete assembly. The control electronics module may also need replacement if visibly damaged.
• 5. Professional service: Because this is a serious electrical fault, have the vacuum inspected and repaired by an authorized Festool service center before further use.