Cordless vacuum shows E7 and runs only at low power or not at all when set to turbo mode

Safety first: If the battery feels hot to the touch, remove it from the vacuum and place it on a non-flammable surface away from direct sunlight.

• Allow cooling: Let the battery and vacuum cool for at least 30–60 minutes. Do not place in a fridge or freezer.
• Check vents: Inspect the motor housing and side vents for dust buildup. Use a soft brush or compressed air (short bursts) to clear vents without forcing dust inside.
• Reduce load: Ensure filters and air paths are clean so the motor does not have to work excessively hard. Avoid using turbo mode continuously on thick carpets.
• Monitor temperature: After cooling and cleaning, run the vacuum on normal mode. If E7 reappears quickly and the battery becomes hot, the battery pack may be failing and should be replaced.
• Do not open battery: If the battery swells, leaks, or smells unusual, stop using it immediately and dispose of it according to local e-waste regulations.