Kärcher Cordless Vacuums Error Codes

E1

The cordless vacuum will not start; the display shows E1 immediately after pressing the power button.

Battery Pack Communication Error

E10

Cordless vacuum shows E10 and will not power on after long storage.

Deep Discharge / Battery Protection Lockout

E11

Cordless vacuum shows E11 and runs only at reduced power.

Filter Blockage / Airflow Restriction Detected

E12

Cordless vacuum shows E12 and shuts off when the brush is activated on certain floor types.

Brush Height / Floor Type Sensor Error

E13

Cordless vacuum shows E13 and the LED work light flickers or does not turn on.

LED Lighting Circuit Fault

E14

Cordless vacuum shows E14 and emits a continuous beep; no functions work.

Firmware / Internal Memory Error

E15

Cordless vacuum shows E15 and cannot switch between power modes.

Mode Button / User Interface Error

E2

The cordless vacuum stops shortly after starting; the display shows E2 and the unit beeps.

Overcurrent / Motor Overload Protection

E3

The cordless vacuum runs for a few seconds then stops, and E3 appears on the display.

Motor Temperature Sensor Fault / Overheating Detected

E4

Cordless vacuum does not respond to the trigger, E4 displayed, sometimes after a drop or impact.

Tilt / Crash Sensor or Safety Interlock Error

E5

Cordless vacuum stops and shows E5 when using turbo or maximum power mode.

Overvoltage / Undervoltage Protection (Battery Voltage Out of Range)

E6

Cordless vacuum shows E6 and will not charge when placed on the charging station.

Charging Circuit / Charger Communication Error

E7

Cordless vacuum display shows E7 and suction is disabled; the brush may still rotate.

Dust Container / Filter Not Detected or Not Installed Correctly

E8

Cordless vacuum shows E8 and the brush roller will not turn; suction may still work.

Brush Motor / Floor Nozzle Overload or Jam

E9

Cordless vacuum shows E9 and shuts down when switching between modes or accessories.

Internal Communication Bus Error (Main PCB to Accessory/Nozzle)

Symptom

Brush roller does not spin, but suction is normal, and no error code is shown.

Brush Drive Failure

Symptom

Cordless vacuum blows dust out of the exhaust or around the filter area.

Filter Bypass / Seal Failure

Symptom

Cordless vacuum emits a burning smell or visible smoke from the motor area.

Motor Overheating / Electrical Short

Symptom

Cordless vacuum emits a strong chemical or electrical smell from the battery area.

Battery Overheating / Venting Risk

Symptom

Cordless vacuum intermittently cuts out when the wand is moved or twisted.

Intermittent Connection in Wand / Nozzle Wiring

Symptom

Cordless vacuum leaves a fine dust smell or musty odor during use.

Contaminated Filters / Dust Container Odor

Symptom

Cordless vacuum leaves lines of debris and does not pick up well from carpets.

Brush Roller Inefficiency / Floor Nozzle Performance Loss

Symptom

Cordless vacuum makes a whistling noise, and suction seems reduced.

Air Leak in Suction Path

Symptom

Cordless vacuum makes rattling or clunking noises from the floor nozzle when moving back and forth.

Mechanical Play in Nozzle / Loose Components

Symptom

Cordless vacuum produces a high-frequency squeal from the floor nozzle when the brush is on.

Brush Roller Bearing Noise

Symptom

Cordless vacuum runs but has very weak suction, even with a fully charged battery.

Airflow Restriction / Filter Saturation

Symptom

Cordless vacuum runs but makes a loud, high-pitched whine from the motor area.

Motor Bearing Wear / Turbine Imbalance

Symptom

Cordless vacuum runs only in one power mode and ignores mode changes.

Mode Control / Switch Failure

Symptom

Cordless vacuum runs, but the handle or body becomes excessively hot to the touch.

Overheating Due to Restricted Airflow or Electrical Losses

Symptom

Cordless vacuum shuts off after a few seconds of use, with no error code displayed.

Battery Voltage Sag / Protection Trip

Symptom

Cordless vacuum stops when tilted to certain angles (e.g., when cleaning high areas).

Tilt Safety / Orientation Sensor Sensitivity

Symptom

Cordless vacuum trigger must be held very hard or at a specific angle to keep the unit running.

Worn Trigger Switch / Mechanical Misalignment

Symptom

Cordless vacuum vibrates excessively, especially at high power.

Imbalanced Brush Roller or Fan

Symptom

Cordless vacuum will not turn on at all; no lights or sounds.

No Power / Dead Unit

Symptom

Cordless vacuum's LED work light stays on even when the vacuum is switched off.

Stuck LED Driver / Control Logic Fault

Symptom

Cordless vacuum's accessories (crevice tool, upholstery tool) are difficult to attach or fall off easily.

Accessory Coupling Wear / Deformation

Symptom

Cordless vacuum's charging indicator flashes, but the battery does not gain charge.

Charging Failure / Battery Not Accepting Charge

Symptom

Cordless vacuum’s LED battery indicator shows full, but runtime is very short.

Battery Capacity Loss / Calibration Issue

Symptom

Cordless vacuum’s dust container door will not close or pops open during use.

Bottom Flap / Door Latch Fault

Symptom

Cordless vacuum’s dust container keeps falling off during use.

Dust Container Latch Failure