Festool Cordless Vacuums Error Codes

E01

Cordless vacuum will not power on when main switch is set to ON and battery is installed

Main Power Supply / Control Electronics Fault

E02

Cordless vacuum powers on briefly then shuts down with E02 on the display

Overcurrent / Motor Overload Protection

E03

Vacuum stops during use and displays E03, will restart after a cool-down period

Motor Overtemperature Protection

E04

Cordless vacuum will not start and shows E04 immediately when powered on

Battery Pack Communication / Identification Error

E05

Vacuum stops and displays E05 when used with a connected cordless tool via Bluetooth or remote

Tool Start / Bluetooth Communication Fault

E06

Vacuum display shows E06 and suction is very weak or absent

Airflow / Suction Sensor Fault

E07

Vacuum attempts to start, motor jerks or hums, then E07 appears and it shuts down

Motor Start / Rotor Position Detection Fault

E08

Vacuum stops with E08 after a short run time, battery still shows charge on its LEDs

Undervoltage / Battery Protection Triggered Under Load

E09

Vacuum display shows E09 and unit will not run when connected to charger or power adapter (if model supports hybrid operation)

Charging / External Power Input Fault

E10

Vacuum shows E10 and runs only at a single speed or not at all when speed is adjusted

Speed Control / Potentiometer Fault

E11

Vacuum displays E11 and shuts down when filter cleaning function is activated (if equipped)

Automatic Filter Cleaning Mechanism Fault

E12

Vacuum shows E12 and will not start when dust container is removed or not seated correctly

Container Presence / Safety Interlock Fault

E13

Vacuum displays E13 and motor speed surges up and down without user input

Motor Speed Feedback / Tachometer Fault

E14

Vacuum shows E14 and emits a burning smell or visible sparks from motor area before shutting down

Motor Short Circuit / Insulation Failure

E15

Vacuum displays E15 and none of the buttons or controls respond

User Interface / Keypad Communication Fault

E16

Vacuum shows E16 and Bluetooth indicator flashes abnormally, remote cannot connect

Bluetooth Module Hardware Fault

E17

Vacuum displays E17 and shuts down when fine dust extraction is used continuously

Fine Dust Filter Differential Pressure Fault

E18

Vacuum shows E18 and will not run when used in auto-start mode with a paired tool

Auto-Start Logic / Trigger Detection Fault

Symptom

Bluetooth remote or tool module does not start the vacuum, but vacuum runs in manual mode

Bluetooth Control Path Failure

Symptom

Buttons on the control panel do not respond or require very hard pressing

Keypad / Button Failure

Symptom

Cordless vacuum will not turn on at all, no lights or response when battery is installed

Complete Power Loss

Symptom

Dust or debris leaks from around the container or hose connection during use

Air Leakage / Poor Sealing

Symptom

Fine dust escapes from the exhaust air, air seems dusty despite filter installed

Filter Bypass / HEPA Filter Failure

Symptom

Main power switch feels loose, sticks, or does not stay in position

Mechanical Switch Wear / Failure

Symptom

Suction is weak even though the motor sounds normal

Reduced Airflow / Suction Loss

Symptom

Vacuum body becomes unusually hot to the touch during normal use

Overheating Due to Restricted Cooling

Symptom

Vacuum cannot stand or roll properly; chassis feels unstable or tips easily

Chassis / Wheel Damage

Symptom

Vacuum does not hold the hose securely; hose frequently falls out during use

Hose Connection / Locking Fault

Symptom

Vacuum does not start when container is very full; starts again after emptying

Overfill Protection / Airflow Restriction

Symptom

Vacuum emits a strong burning or electrical smell during use but continues to run

Early-Stage Motor or Electronics Overheating

Symptom

Vacuum emits unusual clicking or chirping sounds from the electronics area when starting or stopping

Relay or Electronic Switching Noise

Symptom

Vacuum makes a loud high-pitched whine or grinding noise during operation

Motor Bearing or Fan Impeller Damage

Symptom

Vacuum produces a rattling noise from inside the container during use

Loose Internal Components or Debris

Symptom

Vacuum runs but attached power tool or accessory is not being adequately cleaned (poor extraction at tool)

Tool-End Extraction Inefficiency

Symptom

Vacuum runs for only a few minutes on a full charge before shutting off, no error code displayed

Reduced Runtime / Battery Capacity Loss

Symptom

Vacuum shuts off intermittently when moved or bumped, then restarts when tapped or when battery is reseated

Intermittent Power Connection

Symptom

Vacuum starts but immediately shuts off when hose is blocked by hand, no error code

Overcurrent / Overload Protection Without Display Code

Symptom

Vacuum vibrates excessively while running, even on a flat surface

Mechanical Imbalance / Loose Components