Bomann Cordless Vacuums Error Codes

E1

Cordless vacuum will not power on, battery icon flashes briefly then turns off

Battery Pack Undervoltage Protection

E10

LED display shows E10 and vacuum stops when using motorized accessories (e.g., mini turbo brush, floor head)

Accessory Motor Overload / Short Circuit Protection

E2

Vacuum shuts off within a few seconds of starting, motor tries to start then stops, E2 shown on LED display

Motor Overcurrent / Blocked Motor Protection

E3

Vacuum stops during use and E3 appears, unit feels hot to the touch, will not restart for several minutes

Thermal Overload / Overheating Protection

E4

Brush roll in motorized floor head stops spinning, E4 or brush icon flashes on handle display

Brush Roll Jam / Motorized Nozzle Overload

E5

Battery will not charge, charger LED flashes red or E5 appears on vacuum display when docked

Battery Pack Overtemperature / Charging Protection

E6

Vacuum runs only on low power, cannot switch to turbo mode, E6 or power icon flashes when trying to change speed

Power Mode Switching / Control PCB Fault

E7

LED display shows E7 and vacuum will not start, often after a drop or impact

Internal Communication Error / Sensor Bus Fault

E8

Vacuum runs for only a very short time (1–2 minutes) on a full charge, E8 or low-battery icon flashes

Battery Capacity Degradation

E9

Vacuum does not recognize that the dust bin is installed, E9 or bin icon flashes and unit will not start

Dust Bin Presence / Microswitch Fault

F1

Vacuum powers on but suction is extremely weak, F1 code or filter icon appears on display

Severely Clogged Filters / Restricted Airflow

F2

Vacuum pulses on and off rapidly, F2 or blockage icon appears, suction fluctuates

Airflow Blockage / Cyclone Restriction

F3

LED display shows F3 and vacuum will not start, often after long storage

Battery Pack Deep Discharge Lockout

F4

Vacuum randomly shuts off when tilted or moved, F4 tilt icon appears on display

Tilt / Orientation Sensor Fault

F5

Vacuum emits a burning smell and F5 appears, unit shuts down quickly

Motor Overheat / Overcurrent Protection

Symptom

Battery indicator LEDs on the handle are inaccurate (e.g., show full but vacuum stops quickly)

Battery Level Calibration / Indicator Error

Symptom

Crevice tool or dusting brush does not fit securely onto the wand or handheld unit

Accessory Fitment / Locking Tab Wear

Symptom

Dust escapes from joints or around the dust bin during use

Dust Leakage / Seal Failure

Symptom

Fine dust appears on the HEPA filter area or exhaust grille more quickly than usual

Cyclone Separation Inefficiency

Symptom

LED lights on the floor nozzle do not turn on, but the brush roll still spins

Nozzle LED Light Failure

Symptom

Mini motorized upholstery tool does not spin, while main floor head works normally

Accessory Motor Failure / Connection Issue

Symptom

On models with a trigger switch, the trigger feels loose or does not spring back properly

Trigger Mechanism Wear / Spring Failure

Symptom

Suction is weak even though motor sounds normal and no error codes are displayed

General Suction Loss

Symptom

Vacuum cannot be docked properly on the wall mount or charging station, does not start charging

Docking / Charging Alignment Issue

Symptom

Vacuum cannot stand properly in the wall mount or keeps falling off

Mechanical Mounting / Bracket Wear

Symptom

Vacuum handle or body becomes uncomfortably hot during normal use

Excessive Operating Temperature

Symptom

Vacuum intermittently shocks the user with small static discharges during use

Static Electricity Build-up

Symptom

Vacuum leaves debris on carpet, poor pickup even though suction at the wand feels strong

Ineffective Floor Cleaning / Brush Roll Performance Loss

Symptom

Vacuum makes loud rattling or grinding noise during operation

Mechanical Noise / Bearing Wear

Symptom

Vacuum produces a high-pitched whistling sound during use

Air Leak / Partial Blockage

Symptom

Vacuum produces a hot or burning plastic smell but no error code appears

Overheating Components Without Triggering Protection

Symptom

Vacuum runs but emits a strong dusty or musty odor from the exhaust

Odor Contamination / Dirty Filters and Bin

Symptom

Vacuum turns on but shuts off after a few seconds without any error code

Intermittent Power Loss / Loose Connection

Symptom

Vacuum vibrates excessively, especially when using the motorized floor head

Imbalanced Brush Roll / Debris Build-up

Symptom

Vacuum will not turn on at all, no lights or response when pressing power button

No Power / Dead Unit