Display shows E5; vacuum may not charge or may shut off when starting; sometimes accompanied by a burning smell or unusual noise from the motor area.

Safety first: Immediately stop using the vacuum if you smell burning or see smoke. Turn it OFF, remove the battery, and unplug the charger.

• Inspect for moisture: If the vacuum was used on wet surfaces or exposed to water, do not power it on. Allow it to dry in a warm, dry area for at least 48 hours. Do not use heat sources like hair dryers directly on the unit.
• Check air path for obstructions: Remove the dust bin, filters, and attachments. Ensure nothing is blocking the motor inlet.
• Smell test: With the battery removed, smell near the motor vents. A strong burnt odor suggests motor damage.
• Do not bypass safety: Do not attempt to bridge fuses or bypass thermal cutoffs; this is dangerous.
• Service or replace motor assembly: If E5 persists after ensuring the unit is dry and unobstructed, the main motor assembly or internal PCB is likely damaged. This repair typically requires disassembling the main body and should be done by a qualified technician or by replacing the entire motor housing assembly.