Hoover Robot Vacuums Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E1
Robot vacuum will not start cleaning and displays E1 or beeps once repeatedly.
Main Power Supply / Battery Connection Fault
E10
Robot vacuum shows E10 and will not charge properly; may say 'charging error' or 'battery error'.
Charging Circuit / Dock Contact Fault
E11
Robot vacuum displays E11 and stops mapping; may say 'laser sensor error' or 'LDS error' on models with a laser turret.
LDS (Laser Distance Sensor) / Lidar Fault
E12
Robot vacuum shows E12 and cannot connect to Wi‑Fi or app; may say 'communication error'.
Wi‑Fi / Main Board Communication Fault
E13
Robot vacuum displays E13 and stops; may say 'gyro error' or 'orientation error'.
Gyroscope / IMU Sensor Fault
E14
Robot vacuum shows E14 and shuts down unexpectedly during cleaning.
Overheating Protection / Thermal Cut‑Out
E15
Robot vacuum displays E15 and cannot find or dock to the charging base.
Dock Localization / IR Receiver Fault
E16
Robot vacuum shows E16 and refuses to start; may say 'time error' or 'internal clock error'.
RTC (Real Time Clock) / Memory Fault
E17
Robot vacuum displays E17 and moves erratically, spinning in circles or failing to navigate.
Wheel Encoder / Odometry Fault
E18
Robot vacuum shows E18 and reports 'sensor dirty' or 'front sensor blocked'.
Front Obstacle / Wall Sensor Contamination
E19
Robot vacuum displays E19 and stops with a beeping pattern; may say 'brushes blocked' even when clean.
Brush Current Sensor / Motor Driver Fault
E2
Robot vacuum stops shortly after starting and displays E2 or two beeps; may say 'wheel error' in app or voice prompt.
Drive Wheel Motor Stall / Obstruction
E20
Robot vacuum shows E20 and will not start; may say 'low battery' even after charging.
Battery Capacity / Voltage Detection Fault
E3
Robot vacuum displays E3 or three beeps and stops; may announce 'side brush error'.
Side Brush Motor Overload / Jam
E4
Robot vacuum shows E4 or four beeps and stops; may say 'main brush error' or 'roller brush blocked'.
Main Brush Motor Stall / Overcurrent
E5
Robot vacuum displays E5 or five beeps and refuses to start; may say 'dustbin not installed' or 'bin error'.
Dustbin Presence / Dustbin Sensor Fault
E6
Robot vacuum shows E6 or six beeps and stops; may say 'cliff sensor error' or 'drop sensor error'.
Cliff / Drop Sensor Failure or Contamination
E7
Robot vacuum displays E7 and stops; may say 'bumper error' or 'front sensor error'.
Front Bumper / Obstacle Sensor Stuck
E8
Robot vacuum shows E8 and will not move; may say 'wheel suspended' or 'stuck'.
Robot Stuck / Wheel Off Ground Detection
E9
Robot vacuum displays E9 and returns to dock or stops; may say 'fan error' or 'suction error'.
Suction Fan Motor Fault / Blocked Airflow
Symptom
Robot vacuum battery drains quickly and runtime is much shorter than when new.
Battery Capacity Degradation
Symptom
Robot vacuum bumps into furniture hard and does not slow down or avoid obstacles as before.
Obstacle Detection Degradation
Symptom
Robot vacuum does not respond to app commands, but cleans normally when started manually.
App Connectivity / Network Control Issue
Symptom
Robot vacuum does not return to the charging base and stops in random locations with low battery.
Auto‑Docking / Return‑to‑Base Failure
Symptom
Robot vacuum does not start at scheduled times, but works when started manually.
Scheduling / Timer Function Failure
Symptom
Robot vacuum emits a burning smell or very hot air from the exhaust during cleaning.
Overheating Motor / Electrical Overload
Symptom
Robot vacuum frequently gets stuck on thresholds, rugs, or cables.
Mobility / Obstacle Negotiation Issue
Symptom
Robot vacuum is very loud during operation, with rattling or grinding noises from underneath.
Mechanical Noise from Brush or Fan
Symptom
Robot vacuum leaves fine dust on the floor and blows dust out of the exhaust.
Filtration / Dust Leakage Issue
Symptom
Robot vacuum leaves marks or scratches on delicate floors.
Floor Surface Damage from Robot Components
Symptom
Robot vacuum leaves streaks of dust or lines of debris on the floor after cleaning.
Ineffective Debris Pickup / Brush Wear
Symptom
Robot vacuum main brush does not rotate, but suction works normally.
Main Brush Drive Failure
Symptom
Robot vacuum maps the home incorrectly, with distorted or overlapping rooms.
Mapping / Localization Inaccuracy
Symptom
Robot vacuum powers on but immediately shuts off when lifted or moved.
Lift / Drop Sensor Over‑Sensitivity
Symptom
Robot vacuum randomly reboots during cleaning without showing an error code.
Intermittent Power / Logic Reset
Symptom
Robot vacuum runs but leaves a lot of debris behind and has noticeably weak suction.
Reduced Suction Performance
Symptom
Robot vacuum side brush does not spin, but no error code is shown.
Side Brush Non‑Operation
Symptom
Robot vacuum stops frequently with the message 'please clean sensors' but sensors appear clean.
False Sensor Contamination Detection
Symptom
Robot vacuum will not power on at all, no lights or sounds, even after charging.
Complete Power Loss
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Robot vacuum will not start cleaning and displays E1 or beeps once repeatedly.
|
Main Power Supply / Battery Connection Fault | View Details |
| E10 |
Robot vacuum shows E10 and will not charge properly; may say 'charging error' or 'battery error'.
|
Charging Circuit / Dock Contact Fault | View Details |
| E11 |
Robot vacuum displays E11 and stops mapping; may say 'laser sensor error' or 'LDS error' on models with a laser turret.
|
LDS (Laser Distance Sensor) / Lidar Fault | View Details |
| E12 |
Robot vacuum shows E12 and cannot connect to Wi‑Fi or app; may say 'communication error'.
|
Wi‑Fi / Main Board Communication Fault | View Details |
| E13 |
Robot vacuum displays E13 and stops; may say 'gyro error' or 'orientation error'.
|
Gyroscope / IMU Sensor Fault | View Details |
| E14 |
Robot vacuum shows E14 and shuts down unexpectedly during cleaning.
|
Overheating Protection / Thermal Cut‑Out | View Details |
| E15 |
Robot vacuum displays E15 and cannot find or dock to the charging base.
|
Dock Localization / IR Receiver Fault | View Details |
| E16 |
Robot vacuum shows E16 and refuses to start; may say 'time error' or 'internal clock error'.
|
RTC (Real Time Clock) / Memory Fault | View Details |
| E17 |
Robot vacuum displays E17 and moves erratically, spinning in circles or failing to navigate.
|
Wheel Encoder / Odometry Fault | View Details |
| E18 |
Robot vacuum shows E18 and reports 'sensor dirty' or 'front sensor blocked'.
|
Front Obstacle / Wall Sensor Contamination | View Details |
| E19 |
Robot vacuum displays E19 and stops with a beeping pattern; may say 'brushes blocked' even when clean.
|
Brush Current Sensor / Motor Driver Fault | View Details |
| E2 |
Robot vacuum stops shortly after starting and displays E2 or two beeps; may say 'wheel error' in app or voice prompt.
|
Drive Wheel Motor Stall / Obstruction | View Details |
| E20 |
Robot vacuum shows E20 and will not start; may say 'low battery' even after charging.
|
Battery Capacity / Voltage Detection Fault | View Details |
| E3 |
Robot vacuum displays E3 or three beeps and stops; may announce 'side brush error'.
|
Side Brush Motor Overload / Jam | View Details |
| E4 |
Robot vacuum shows E4 or four beeps and stops; may say 'main brush error' or 'roller brush blocked'.
|
Main Brush Motor Stall / Overcurrent | View Details |
| E5 |
Robot vacuum displays E5 or five beeps and refuses to start; may say 'dustbin not installed' or 'bin error'.
|
Dustbin Presence / Dustbin Sensor Fault | View Details |
| E6 |
Robot vacuum shows E6 or six beeps and stops; may say 'cliff sensor error' or 'drop sensor error'.
|
Cliff / Drop Sensor Failure or Contamination | View Details |
| E7 |
Robot vacuum displays E7 and stops; may say 'bumper error' or 'front sensor error'.
|
Front Bumper / Obstacle Sensor Stuck | View Details |
| E8 |
Robot vacuum shows E8 and will not move; may say 'wheel suspended' or 'stuck'.
|
Robot Stuck / Wheel Off Ground Detection | View Details |
| E9 |
Robot vacuum displays E9 and returns to dock or stops; may say 'fan error' or 'suction error'.
|
Suction Fan Motor Fault / Blocked Airflow | View Details |
| – |
Robot vacuum battery drains quickly and runtime is much shorter than when new.
|
Battery Capacity Degradation | View Details |
| – |
Robot vacuum bumps into furniture hard and does not slow down or avoid obstacles as before.
|
Obstacle Detection Degradation | View Details |
| – |
Robot vacuum does not respond to app commands, but cleans normally when started manually.
|
App Connectivity / Network Control Issue | View Details |
| – |
Robot vacuum does not return to the charging base and stops in random locations with low battery.
|
Auto‑Docking / Return‑to‑Base Failure | View Details |
| – |
Robot vacuum does not start at scheduled times, but works when started manually.
|
Scheduling / Timer Function Failure | View Details |
| – |
Robot vacuum emits a burning smell or very hot air from the exhaust during cleaning.
|
Overheating Motor / Electrical Overload | View Details |
| – |
Robot vacuum frequently gets stuck on thresholds, rugs, or cables.
|
Mobility / Obstacle Negotiation Issue | View Details |
| – |
Robot vacuum is very loud during operation, with rattling or grinding noises from underneath.
|
Mechanical Noise from Brush or Fan | View Details |
| – |
Robot vacuum leaves fine dust on the floor and blows dust out of the exhaust.
|
Filtration / Dust Leakage Issue | View Details |
| – |
Robot vacuum leaves marks or scratches on delicate floors.
|
Floor Surface Damage from Robot Components | View Details |
| – |
Robot vacuum leaves streaks of dust or lines of debris on the floor after cleaning.
|
Ineffective Debris Pickup / Brush Wear | View Details |
| – |
Robot vacuum main brush does not rotate, but suction works normally.
|
Main Brush Drive Failure | View Details |
| – |
Robot vacuum maps the home incorrectly, with distorted or overlapping rooms.
|
Mapping / Localization Inaccuracy | View Details |
| – |
Robot vacuum powers on but immediately shuts off when lifted or moved.
|
Lift / Drop Sensor Over‑Sensitivity | View Details |
| – |
Robot vacuum randomly reboots during cleaning without showing an error code.
|
Intermittent Power / Logic Reset | View Details |
| – |
Robot vacuum runs but leaves a lot of debris behind and has noticeably weak suction.
|
Reduced Suction Performance | View Details |
| – |
Robot vacuum side brush does not spin, but no error code is shown.
|
Side Brush Non‑Operation | View Details |
| – |
Robot vacuum stops frequently with the message 'please clean sensors' but sensors appear clean.
|
False Sensor Contamination Detection | View Details |
| – |
Robot vacuum will not power on at all, no lights or sounds, even after charging.
|
Complete Power Loss | View Details |
No matching codes found
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