Cordless vacuum shows E7 or rapid red/blue LED flashing when trigger is pulled; unit does not run

Safety first: Remove the battery pack and do not attempt to run the vacuum until basic checks are complete.

• Visual inspection: Check the main body for signs of impact damage or liquid ingress. If the unit was dropped or exposed to moisture, internal electronics may be damaged.
• Smell test: With the battery removed, smell near the motor vents. A burnt electronics smell suggests a failed control board or motor.
• Reset attempt: Some Hamilton Beach cordless vacuums can be reset by removing the battery for 5 minutes, then reinstalling while holding the power button for 10 seconds. Consult your specific model manual.
• Check for shorts: Inspect visible wiring from the battery terminals to the motor for pinched or cut wires.
• Service required: E7 typically indicates an internal electronic failure. Replacement of the main control PCB and/or motor assembly is required and should be performed by a qualified technician.