Robot Troubleshooting & Error Codes

Find Your Solution Fast

Browse by brand for error codes or by problem type for common issues. All guides include step-by-step fixes with no unnecessary fluff.

Robot not working as expected? This troubleshooting database covers common issues, error codes, and systematic fixes for all major household robot brands. Each guide is structured for speed: quick fix summary first, then detailed steps.

Brand-Specific Error Codes

iRobot Roomba Error Codes

Error 1-31 complete list. Red ring patterns. Wheel module failures. Bin sensor issues. Cliff sensor calibration.

→ View all Roomba errors

Shark Robot Error Codes

Error 2, 3, 5, 7, 9 meanings. Side brush faults. Bumper sensor stuck. Cliff sensor failures. Battery errors.

→ View all Shark errors

Ecovacs Deebot Error Codes

AIVI camera errors. Mopping system failures. Auto-empty base problems. Firmware update issues.

→ View all Ecovacs errors

Dreame Error Codes

Complete error 1–40 reference for X-series, L-series, and D-series Dreame robots. LDS, mop, dock, and WiFi issues.

→ View all Dreame errors

Eufy Error Codes

E-01 through E-15 plus the classic RoboVac beep/LED code system for older 11S, 15C, G-series, and X-series models.

→ View all Eufy errors

Common Problems by Type

Robot Vacuum Issues

Robot Vacuum Won't Connect to Wi-Fi

The 2.4GHz band issue, router settings, weak signal, AP isolation, and step-by-step pairing fixes.

App Pairing Problems

Permissions, account region, app version, Bluetooth handshake, and pairing-mode fixes.

Robot Mop Leaving Streaks

Dirty pads, wrong cleaning solution, dirty water, dock buildup, and floor-residue fixes.

Getting Stuck on Rugs

High-pile beaching, loose-rug bunching, tassel tangles, and no-go-zone fixes.

Brush Not Spinning

Tangled hair, jammed end-caps, side-brush stalls, error codes, and motor diagnosis.

Robot Vacuum Keeps Getting Stuck

Cables, dark carpets, thresholds, chair legs. Sensor calibration. No-go zones setup. Cliff sensor false positives.

Robot Vacuum Not Charging

Contact cleaning procedures. Dock positioning requirements. Battery replacement indicators. Firmware charge bugs.

Navigation & Mapping Problems

LiDAR dirty/blocked. Lost map recovery. Multi-floor sync issues. Cleaning interrupted errors. Sensor recalibration.

Roborock Offline Issues

WiFi connection troubleshooting. App pairing failures. 2.4GHz router requirements. Firmware update problems.

Robot Vacuum Lost Its Map

Recovery steps when a saved map vanishes after firmware updates, dock moves, or account migrations. Roborock, Dreame, iRobot, Eufy.

Robot Vacuum Overheating

Why a vacuum runs hot, what's normal, when to stop using, and how to avoid the next thermal event.

Robotic Lawn Mower Issues

Mower Won't Return to Dock

RTK/GPS signal, moved antenna, broken boundary wire, dirty contacts, and dock-placement fixes.

Lawn Mower Boundary Errors

GPS signal loss. RTK base station setup. Virtual boundary configuration. Out of zone errors. Wire breaks.

Mower in Wet Grass

When the rain sensor pauses cutting, when to resume, and what wet-clipping clumps actually do to your lawn and the mower.

Window Cleaner Issues

Window Cleaner Falling

Why robots fall, safety tether setup, pre-run checks, and what to do if the robot does come off the glass.

General Troubleshooting Steps

Before diving into specific errors, try these universal fixes:

1. Restart the Robot Power off for 30 seconds, then restart. Clears temporary software glitches.
2. Clean All Sensors Use microfiber cloth on cliff sensors, LiDAR, cameras, and charging contacts.
3. Check for Firmware Updates Manufacturers often fix bugs via app-based updates. Check your robot's app.
4. Verify WiFi Connection Most robots require 2.4GHz WiFi. 5GHz networks are not compatible.
5. Clear Obstructions Remove hair from brushes, empty bin, check wheels for debris wrapped around axles.