Cordless Shark vacuum indicates an error when the filter cover is removed; unit will not start until cover is reinstalled, but error persists even with cover on

Safety first: Remove the battery before working around the filter compartment.

• 1. Remove and reinstall filter cover: Take off the filter cover and reinstall it carefully, ensuring all tabs engage and the latch clicks.
• 2. Inspect cover and latch: Look for cracks, missing tabs, or warped plastic that could prevent full closure. Replace the cover if damaged.
• 3. Check for obstructions: Ensure no filter edges or debris are preventing the cover from seating fully.
• 4. Locate interlock switch (if visible): Some models have a small switch that the cover presses. With the battery removed, gently press this switch to confirm it moves freely. Do not bypass or tape the switch closed; it is a safety device.
• 5. Replace cover or switch: If the cover is intact but the error persists, the interlock switch or its wiring may be faulty and should be replaced by a technician.