LEDs show E7 pattern; vacuum will not start and may beep repeatedly after a drop or impact

Safety first: Remove the battery pack before any physical inspection.

Step-by-step checks:

• 1. Power reset: Remove the battery for at least 60 seconds. Press and hold the power button for 10 seconds (with battery removed) to discharge residual power. Reinstall the battery and test.
• 2. Check for obvious damage: Inspect the main body housing for cracks, gaps, or signs it has been dropped. If the housing is distorted, internal sensors may be misaligned.
• 3. Try different orientations: Some models use a tilt sensor that must detect an upright or in-use position. Hold the vacuum in its normal operating position and attempt to start. Avoid starting while it is upside down or on its side.
• 4. Inspect battery fit: Ensure the battery is fully seated and the latch is engaged. A loose battery can cause intermittent sensor power and false E7 errors.

When to stop: If E7 remains after reset and there is evidence of impact damage, the internal sensor or PCB may need replacement. This typically requires opening the main body; seek professional repair if under warranty.