eufy RoboVac Error Codes 1 to 20 and How to Fix Them

eufy RoboVacs report problems by voice alert and error number, and eufy publishes a separate support article for each code and each series. The common ones are a stuck bumper or wheel (Errors 1 and 2), a jammed brush (Error 4), a trapped or lifted robot (Errors 5 and 6), low battery (Error 8), a dirty wall sensor (Error 12), and a blocked laser (Errors 18 to 20). Most clear once you clean or free the part and restart.

Last reviewed: October 2026. Meanings and fixes come from eufy’s own support articles. The articles are written per series, so check that the code matches your model.

eufy RoboVac error codes

Error 1: front bumper stuck. The G series voice alert says the front bumper is stuck. Debris in the bumper or a scratched bumper lens is the usual cause. eufy says to tap, pull, or shake the bumper to dislodge debris. If dark furniture is scratching the lens, it suggests bumper sponges above and below it. On the G30, G35, and G40 series, replacing the signal bracket usually fixes a repeat.
Error 2 or S2: wheel stuck or trapped. eufy’s X8 series article says to clean both wheels and check that each moves freely and springs back. Wheel assemblies are not interchangeable, and the left wheel differs between the X8 and X8 Hybrid. Set a no-go zone if it happens in one spot.
Error 4 or S5: rolling brush stuck. Remove the brush guard and roller brush and clean the brush, its joints, and the suction inlet. If it persists, eufy says to run the robot on a hard floor without the brush and guard to find out which part is at fault.
Error 5 and Error 6: trapped or lifted. eufy’s L35, LR30, and LR20 article says the robot is trapped or suspended in the air. It suggests a no-go zone for the spot, the latest firmware, and a video or photos to eufy support if it keeps happening.
Error 8: low battery. Clean the charging pins on the base and the robot, then charge fully. eufy’s article for the L70, G10, and G30 series says a full charge takes about 4 to 6 hours, and that a steady blue light means charged. If it persists, the battery may be worn.
Error 9: strong magnetic field or strip. The L70 Hybrid article says the robot is too close to a strong magnetic field or strip. Turn it off, move it away from the spot, and run it again.
Error 12: right wall sensor dirty. For the L35, LR30, and LR20, eufy says to update the firmware, wipe the infrared sensor on the right side of the bumper with a dry cloth, and factory reset by holding the start/pause and home buttons for 10 to 15 seconds.
Error 13: wheel tilted or stuck on a ledge. The L70 Hybrid article says to turn the robot off, put it on a flat surface near where it failed, and run it again.
Error 14: dust collector not inserted. Turn the robot off, make sure the filter is in the collector, and click the collector into place.
Errors 18, 19, and 20: laser blocked. The X8, L35, LR30, and LR20 article says debris or an obstacle is blocking the laser cover or sensor. It says to shake out the robot, clear the laser holes, check that the laser turns, and factory reset. On the L70, eufy says Error 20 can come from mirrors or other reflective objects, so move the robot or remove them.

Before you replace anything

Factory reset: several eufy articles use it as a last owner step. It is done with buttons on the robot, and the exact buttons depend on the model.
Firmware: eufy’s Error 5, 6, and 12 articles all tell you to update the firmware.
Contact support: eufy asks for a video of the error when a code will not clear.

When the error means a repair

A code that returns after cleaning can mean a worn part. eufy’s Error 8 article says lithium-ion batteries typically last 300 to 500 charge cycles and calls the battery a consumable part. See eufy repair and warranty, battery replacement cost, and repair or replace a robot vacuum.

Frequently asked questions

What does eufy Error 8 mean?

The battery is low. Clean the charging pins, charge fully, and run a full cycle. If it keeps happening, eufy says the battery may be worn out.

How do I factory reset a eufy RoboVac?

For the L35, LR30, LR20, and X8 series, eufy says to hold the start/pause and home buttons together for 10 to 15 seconds. Other models use different steps, so check your model’s article.

Why does my eufy say Error 20?

The laser sensor is blocked. On the L70, eufy says mirrors and other reflective objects can cause it, so move the robot or remove them.

Related guides

Sources

Home Robotics Services is an independent reference site. It is not affiliated with eufy or Anker.

eufy RoboVac Error Codes: What They Mean and How to Fix Them