Miele Cordless Vacuums Error Codes

F1

Cordless vacuum will not switch on, display briefly lights then shuts off with F1

Battery Pack Communication Fault

F10

Vacuum shuts off immediately when Electrobrush is connected, F10 displayed

Short Circuit in Electrobrush or Wand

F11

Battery indicator flashes and F11 appears, vacuum stops even with partially charged battery

Battery Voltage Out of Range

F12

Vacuum does not recognize attached accessories, F12 displayed when connecting wand or Electrobrush

Accessory Identification / Data Line Fault

F13

Vacuum stops and F13 appears after a short run time, even with a fully charged battery

Current Sensor / Overload Detection Fault

F14

Display shows F14 and vacuum will not start, often after long storage

Firmware / Internal Memory Error

F15

Vacuum runs only in one power mode, F15 appears when trying to change suction level

Mode Selection Logic Fault

F16

Vacuum stops and F16 appears when tilting or rotating the unit

Position / Tilt Sensor Fault

F17

Battery symbol flashes with F17, vacuum shuts off under heavy load

Battery Overcurrent Protection

F18

Vacuum will not charge, no charging progress, F18 shown on display when docked

Charging Dock / Charger Communication Fault

F19

Filter or maintenance icon with F19 appears, vacuum performance reduced

Filter Service Interval Reached

F2

Vacuum stops shortly after starting, F2 appears on display or LED flashes in a repeating pattern

Overcurrent / Motor Overload Protection

F20

Vacuum vibrates and F20 appears, often accompanied by unusual motor noise

Motor Imbalance / Bearing Fault Detected

F3

Vacuum runs for a few seconds then shuts off with F3, often after long use at maximum power

Motor Overheating Protection

F4

Vacuum does not respond to trigger or power button, F4 displayed or LED flashes rapidly when battery inserted

Main Control PCB Fault

F5

Electrobrush floorhead does not run, F5 appears when trying to use powered brush

Electrobrush Communication / Power Fault

F6

Battery will not charge, charger LED blinks and F6 appears on vacuum when battery is inserted

Battery Pack Temperature / Protection Fault

F7

Vacuum cuts out when changing power levels, F7 displayed or power LEDs flash in sequence

Power Mode Control / Button Interface Fault

F8

Vacuum runs but suction is very low, F8 or filter symbol appears on display

Filter Blockage / Airflow Restriction Detected

F9

Electrobrush stops intermittently, F9 appears or brush LED flashes red

Brush Motor Overload / Jam Detection

Symptom

Brush roller in Electrobrush does not spin, but suction is present

Brush Drive Failure

Symptom

Brush roller starts and stops intermittently while vacuuming

Intermittent Brush Power / Connection Fault

Symptom

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

No Power / Dead Unit

Symptom

Dust container does not latch properly or falls off during use

Dust Container Latch Failure

Symptom

Dust escapes from vacuum or fine dust visible around exhaust

Filtration / Seal Failure

Symptom

Run time is significantly shorter than specified, even after full charge

Reduced Battery Capacity

Symptom

Suction is weak even though the motor sounds normal

Airflow Restriction / Leak

Symptom

Vacuum body or battery becomes excessively hot to the touch

Overheating Battery or Motor

Symptom

Vacuum does not stand properly in its wall mount or falls off the charging cradle

Mounting / Docking Misalignment

Symptom

Vacuum emits a burning smell during operation

Overheating Component / Electrical Fault

Symptom

Vacuum handle or joints feel loose and flex excessively during use

Mechanical Joint Wear / Play

Symptom

Vacuum is very loud or has a grinding noise from the motor area

Motor Bearing Wear / Fan Damage

Symptom

Vacuum leaves dust behind and does not pick up well from carpets

Poor Cleaning Performance

Symptom

Vacuum leaves marks or scratches on delicate floors

Damaged Floorhead Wheels or Brush

Symptom

Vacuum makes a high-pitched whistling noise during use

Air Leak at Seal or Gasket

Symptom

Vacuum occasionally shocks the user with static discharge

Static Electricity Build-Up

Symptom

Vacuum produces a rattling or clattering noise from the floorhead

Loose or Damaged Floorhead Components

Symptom

Vacuum smells musty or dusty when running

Contaminated Filters / Dust Container

Symptom

Vacuum turns on but shuts off after a few seconds with no error code, especially on high power

Battery Capacity Loss / Protection Trip

Symptom

Vacuum will not charge, no lights on charger or battery when connected

No Charging / Dead Charger