Cordless vacuum shows E6 and does not respond to trigger or power button; display may still light.

Safety first: Remove the battery before any inspection. Do not operate the unit if there are signs of liquid damage.

• Power reset: Remove the battery for 5 minutes, then reinstall and attempt to power on. This can reset minor logic faults.
• Check for moisture: Inspect the handle, display, and battery area for signs of liquid, corrosion, or residue. If present, do not continue using the vacuum; internal damage is likely.
• Test trigger/button: Press the trigger or power button repeatedly. If it feels stuck, spongy, or does not click, the switch may be mechanically failed.
• Inspect external wiring: On models with a detachable handle or wand wiring, ensure all connectors are fully seated and not damaged.
• Service recommendation: Internal control board and switch replacement require disassembly of the main body and should be performed by a qualified technician to avoid damage to the battery and electronics.