Numatic Cordless Vacuums Error Codes

E1

Cordless vacuum will not power on, battery LEDs flash briefly then go dark

Battery Pack Communication Fault

E10

Vacuum runs but LED display shows filter warning icon continuously, even after filter cleaning

Filter Sensor or Pressure Sensor Fault

E11

Vacuum will not start and shows a lock or key icon on the display

Child Lock / Safety Lock Engaged

E12

Vacuum stops and shows a brush or tangle icon on the display

Brush Bar Jam Protection

E13

Vacuum runs but suction is very weak and an airflow or blockage icon appears

Airflow Restriction / Blockage Detected

E14

Vacuum shuts off randomly with no clear pattern, battery LEDs briefly flash an error then reset

Intermittent Power / Connection Fault

E15

Vacuum powers on but no motor sound, display shows motor fault icon

Motor Drive Circuit Failure

E16

Vacuum will not start and shows a bin or door icon, even though the dust bin appears closed

Bin / Dust Container Interlock Fault

E17

Vacuum shows a battery with exclamation mark icon and refuses to run, even with different batteries

Battery Identification / Compatibility Fault

E18

Vacuum runs but speed fluctuates up and down on its own, with occasional error flashes

Motor Speed Control / Tachometer Fault

E19

Vacuum will not charge on docking station, but charges on direct plug-in charger (if applicable)

Docking Station Power / Contact Fault

E2

Cordless vacuum cuts out immediately when trigger is pressed, battery LEDs show error pattern (e.g., two red flashes)

Battery Overcurrent or Short-Circuit Protection

E20

Vacuum shows a general fault icon immediately after firmware or model update (where applicable)

Firmware / Configuration Error

E3

Cordless vacuum runs for a second then stops, battery LEDs indicate over-temperature (e.g., continuous red or red/amber pattern)

Battery or Motor Over-Temperature Protection

E4

Cordless vacuum will not start, battery LEDs show low-voltage error even after full charge

Battery Low-Voltage Lockout / Cell Imbalance

E5

LED display or indicator on vacuum body shows fault icon and unit will not run after a drop or impact

Impact / Tilt Sensor Fault

E6

Cordless vacuum runs only on low power, switches off when high-power mode is selected, with error indication

High-Power Mode Overload Protection

E7

LED indicator shows fault when brush head is connected; vacuum runs normally without the powered floor head

Brush Head Motor or PCB Fault

E8

Battery LEDs show charging error when docked on charger, charger LED flashes red or unusual pattern

Battery Charging Fault

E9

Vacuum stops and error indicator appears when dust bin is nearly full, even though it is not at the max line

Dust Level / Airflow Sensor Fault

Symptom

Cordless vacuum attachments do not stay locked onto the wand or hose

Tool Retention / Locking Fault

Symptom

Cordless vacuum body becomes very hot to touch near the motor area

Motor Overheating from Restricted Airflow

Symptom

Cordless vacuum emits a musty or unpleasant odor during use

Contaminated Filters or Dust Bin

Symptom

Cordless vacuum exhaust blows dust back into the room

Filter Bypass or Damaged Exhaust Filter

Symptom

Cordless vacuum floor head is difficult to push on carpets

Excessive Brush Roll Drag or Suction Lock

Symptom

Cordless vacuum handle or body flexes and creaks excessively during use

Housing / Chassis Fatigue

Symptom

Cordless vacuum has very weak suction but motor sounds normal

General Suction Loss

Symptom

Cordless vacuum hose collapses or kinks easily, reducing suction

Hose Structural Failure

Symptom

Cordless vacuum intermittently loses brush rotation but suction continues

Intermittent Brush Motor Drive

Symptom

Cordless vacuum is very noisy or rattles during operation

Mechanical Vibration / Bearing Wear

Symptom

Cordless vacuum leaves debris on the floor even though suction feels strong at the hose

Floor Head Pickup Inefficiency

Symptom

Cordless vacuum makes a clicking or popping sound from the brush head

Brush Drive Gear or Belt Slipping

Symptom

Cordless vacuum makes loud high-pitched whistling noise during use

Air Leak at Seal or Gasket

Symptom

Cordless vacuum produces a burning smell during or after use

Motor Overheating or Brush Bar Friction

Symptom

Cordless vacuum runs for only a few minutes on a full charge

Reduced Battery Capacity

Symptom

Cordless vacuum trigger or power button is stiff or sticks in the ON position

Sticking Control Button

Symptom

Cordless vacuum will not stand securely on its charging dock or falls off easily

Docking / Mounting Misalignment