Grundig Cordless Vacuums Error Codes

E01

Vacuum will not power on when the power button is pressed; battery LEDs remain off even after charging.

Main Power Supply / Battery Communication Fault

E02

Vacuum powers on briefly then shuts off within a few seconds; low-battery LED flashes even after full charge.

Battery Pack Voltage / Cell Imbalance Fault

E03

Vacuum stops suddenly during use; motor cuts out and an overheat or E03 indicator flashes.

Motor Overheat / Thermal Cut-Out Activation

E04

Brush head stops spinning while suction continues; brush error or E04 indicator appears.

Motorized Floor Nozzle Overload / Brush Motor Fault

E05

Vacuum runs only at low power; turbo or max mode cannot be activated and E05 or a power-limit icon appears.

High-Current Protection / Turbo Mode Inhibition

E06

Battery indicator flashes rapidly and the vacuum will not start; E06 or a battery fault icon is displayed.

Battery Temperature / Protection Circuit Fault

E07

Vacuum shows E07 or a fan/motor error icon and will not start; a brief click may be heard from the motor area.

Main Motor Start-Up / Hall Sensor Fault

E08

Charging does not start; charger LED blinks and the vacuum display shows E08 or a plug/charger error icon.

Charging Circuit / Dock Communication Fault

E09

Vacuum display shows E09 or a filter icon with an exclamation mark; suction is reduced.

Filter Blockage / Airflow Sensor Fault

E10

LEDs or display show E10 and the vacuum shuts down when the motorized brush is attached.

Accessory Overcurrent / Short-Circuit Protection

E11

Display shows E11 or a dust bin icon; vacuum refuses to start or runs only briefly.

Dust Container Not Seated / Bin Presence Sensor Fault

E12

Vacuum shows E12 or a lock icon; unit will not start after being opened for maintenance.

Safety Interlock / Housing Not Closed Fault

E13

Vacuum displays E13 or a sensor icon; suction and brush appear normal but the error persists.

Internal Sensor Communication Fault

E14

Vacuum shows E14 and runs only for a few seconds before shutting off, even with a new battery.

Overcurrent / Short in Main Motor Circuit

E15

Vacuum shows E15 or a Wi-Fi/cloud icon (on smart models); app cannot connect to the vacuum.

Wireless Module / Connectivity Fault

Symptom

Accessory tools (crevice tool, upholstery brush) do not stay attached and fall off during use.

Accessory Retention / Clip Wear

Symptom

Battery appears to charge but runtime is very short (only a few minutes).

Battery Capacity Degradation

Symptom

Dust escapes from the vacuum exhaust, causing visible dust clouds.

Filter Bypass / HEPA Filter Failure

Symptom

Fine dust accumulates around the bin seal and leaks onto the vacuum body.

Dust Bin Seal Leakage

Symptom

Fine dust appears to bypass the cyclone and collect directly on the pre-motor filter.

Cyclone Separation Inefficiency

Symptom

Handheld unit becomes very hot to touch near the motor area during normal use.

Insufficient Cooling / Airflow Obstruction

Symptom

Handheld unit rattles internally when shaken; performance may be affected.

Loose Internal Component / Broken Plastic Baffle

Symptom

LED headlight on the motorized floor nozzle does not turn on, but the brush still spins.

Nozzle LED Circuit Failure

Symptom

Turbo or boost button does nothing; vacuum only runs in normal mode.

Turbo Mode Switch / Control Fault

Symptom

Vacuum cannot be detached from the wall-mounted charging bracket easily; it feels stuck.

Mechanical Latch / Dock Release Issue

Symptom

Vacuum does not respond to trigger-style on/off control (for models with trigger).

Trigger Switch / Control Fault

Symptom

Vacuum emits a burning smell during use.

Overheating Motor or Brush Drive

Symptom

Vacuum has very weak suction even though the motor sounds normal.

Airflow Restriction / Loss of Sealing

Symptom

Vacuum leaves debris on carpets; brush spins but pickup is poor.

Brush Roll Performance / Floor Head Airflow Fault

Symptom

Vacuum makes a high-pitched whistling noise during use.

Air Leak at Seals or Joints

Symptom

Vacuum makes loud rattling or grinding noises from the floor head.

Brush Roll Bearing / Gearbox Failure

Symptom

Vacuum produces an unusual high-frequency squeal from the motor area.

Motor Bearing Wear / Fan Contact

Symptom

Vacuum runs for a second and then stops when the brush head touches the floor.

Brush Overload Under Load

Symptom

Vacuum shuts off intermittently when moved or tilted.

Intermittent Power / Loose Electrical Connection

Symptom

Vacuum smells musty or unpleasant when running.

Odor from Filters / Dust Bin Contamination

Symptom

Vacuum vibrates excessively when the brush head is on the floor.

Brush Roll Imbalance / Debris Build-Up

Symptom

Vacuum will not stand securely on the charging dock or does not align with charging contacts.

Dock Alignment / Mechanical Mounting Fault

Symptom

Vacuum will not start unless the power button is pressed very hard or at a specific angle.

Worn or Faulty Power Button Switch