Error Code	Symptom	Fault Type	Guide
E1	Cordless vacuum will not power on, battery LEDs flash once then go dark	Battery Pack Protection Trip / Undervoltage Lockout	View Details
E10	Vacuum runs only on lowest power, higher modes trigger an error and shut down	High-Power Current Limit / Motor Drive Fault	View Details
E11	LEDs indicate a dust bin or filter not fitted correctly, vacuum will not start	Bin/Filter Presence Switch Fault	View Details
E12	Vacuum stops and shows a blockage icon even though filters appear clean	Airflow Sensor Calibration / Fault	View Details
E2	Vacuum cuts out within a few seconds of starting, battery LEDs show error pattern or second LED flashing	Overcurrent / Motor Overload Protection	View Details
E3	Vacuum stops and flashes filter or bin icon, suction is weak and unit shuts down after a short time	Airflow Restriction / Filter Blocked Detection	View Details
E4	Brushroll icon flashing, brush bar will not spin although suction works	Brushroll Motor Fault / Jam Detection	View Details
E5	Vacuum shuts down and displays an overheat or temperature warning symbol after a few minutes of use	Thermal Cut-Out / Motor Overheating	View Details
E6	Battery LEDs flash rapidly when trying to charge, charger LED blinks error pattern, battery will not accept charge	Battery Charging Fault / BMS Charge Inhibit	View Details
E7	LED display or indicator shows a sensor error, vacuum may not start or runs erratically	Internal Sensor Fault (Temperature / Current / Hall Sensor)	View Details
E8	Vacuum will not switch between power modes, or mode LEDs flash and revert to default setting	Mode Switch / Trigger Input Fault	View Details
E9	LED display shows an error when attaching the motorized floor head, suction works but head is not recognized	Accessory Communication / Power Supply Fault	View Details
–	Accessories (crevice tool, dusting brush) do not stay attached to the wand or handheld unit	Accessory Retention / Latch Wear	View Details
–	Battery pack is difficult to insert or remove from the vacuum	Battery Latch / Housing Wear	View Details
–	Brushroll does not spin, but there is no error code and suction is normal	Mechanical Brushroll Drive Failure	View Details
–	Charging dock or wall mount does not charge the vacuum when docked	Dock Charging Failure	View Details
–	Cordless vacuum will not turn on at all, no lights, no response to trigger	Complete Power Loss	View Details
–	Dust escapes from around the bin or filter area during use	Air Leak / Seal Failure	View Details
–	Fine dust appears on furniture or in the air despite using the vacuum regularly	Reduced Filtration Efficiency	View Details
–	Floor head lights flicker or do not come on, but brushroll still spins	LED Lighting Circuit Fault in Floor Nozzle	View Details
–	Trigger feels loose or does not spring back, vacuum may stay off or on intermittently	Mechanical Trigger / Switch Failure	View Details
–	Unpleasant musty or burnt smell from exhaust air	Odor Contamination / Overheated Dust	View Details
–	Vacuum body becomes uncomfortably hot to touch during normal use, even without error codes	Excessive Operating Temperature	View Details
–	Vacuum does not stand securely in the wall mount or falls off easily	Docking / Mounting Misalignment	View Details
–	Vacuum emits a burning smell or visible smoke during use	Electrical Overheating / Motor or PCB Failure	View Details
–	Vacuum has very weak suction, but the motor sounds like it is running normally	Airflow Loss / Partial Blockage	View Details
–	Vacuum intermittently cuts out when moving the wand or rotating the floor head	Intermittent Electrical Connection	View Details
–	Vacuum is excessively loud at the floor head, rattling or knocking noises when moving over the floor	Mechanical Wear in Floor Nozzle	View Details
–	Vacuum leaves lines of debris behind and does not pick up well from carpets	Poor Agitation / Brushroll Performance	View Details
–	Vacuum makes a loud high-pitched whine or grinding noise during operation	Motor Bearing or Fan Damage	View Details
–	Vacuum runs but then suddenly stops and all LEDs go dark, then comes back after a short rest	Thermal or Overcurrent Protection Cycling	View Details
–	Vacuum runs for only a very short time (1–3 minutes) even after a full charge	Severely Reduced Runtime	View Details
–	Vacuum shuts off when tilted to certain angles (e.g., when cleaning high areas)	Orientation-Sensitive Connection or Sensor Issue	View Details
–	Vacuum vibrates strongly in the hand or through the wand during use	Imbalance in Rotating Components	View Details

Hoover Candy Cordless Vacuums Error Codes

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