Safety first: Remove the battery pack before opening any covers. Do not bypass safety circuits.

Power reset: Remove the battery for at least 60 seconds, then reinstall firmly. Attempt to power on again.
Check external factors: Confirm the battery is fully charged and works in another compatible Bissell cordless vacuum if possible. If the battery works elsewhere, the fault is in the vacuum body.
Inspect for moisture or damage: Look for signs of liquid ingress, corrosion around vents, or burnt smell from the main body. If present, the main PCB is likely damaged.
Do not attempt board-level repair: Bissell control boards are not designed for component-level repair by end users. Replace the main body assembly or main control board as a complete unit according to service documentation.
Professional service: If the unit is under warranty or you are not comfortable disassembling the main body, contact an authorized Bissell service center for board replacement.

Cordless vacuum display shows E6 and unit will not run even with a charged battery

Possible Causes