How to Solve Error 21 Charging Error on iRobot Roomba Vacuum Cleaner

  • Error: Error 21 Charging Error
  • Description: The Error 21 Charging Error on the iRobot Roomba vacuum cleaner indicates that the robot is docked but cannot charge properly.
  • Cause: The most common cause of this error is the accumulation of dirt or debris on the charging contacts of the robot.
  • Solution: To solve the Error 21 Charging Error on the iRobot Roomba vacuum cleaner, it is recommended to follow the following steps:
  1. Clean the charging contacts: The accumulation of dirt, dust, or debris on the charging contacts can interfere with the connection and cause the charging error. Use a soft, dry cloth to clean the charging contacts on both the robot and the charging base. Make sure to remove any dirt or residue that may be present.
  2. Check the battery: If the error persists after cleaning the charging contacts, it is possible that the battery is defective. Make sure to use an original iRobot lithium-ion battery. Non-original batteries can cause unknown charging errors. If you have doubts about the authenticity of the battery, consider replacing it with a new one.
  3. Remove and reinstall the battery: In some cases, removing and reinstalling the battery can resolve connection and charging issues. Follow the instructions in the user manual to access the battery and perform this operation. Make sure the battery is properly placed and secured in its position.
  4. Contact iRobot Customer Service: If the Error 21 Charging Error persists after following the above steps, it is recommended to contact iRobot Customer Service for further assistance. Have the fully charged robot and the robot’s serial number on hand, and in case of warranty claims, the proof of purchase (receipt or invoice from an authorized dealer).

It is important to note that these steps are general and may vary slightly depending on the specific model of Roomba. It is always recommended to consult the user manual or documentation provided by iRobot for precise and up-to-date instructions.

Remember that regular and proper maintenance of your iRobot Roomba vacuum cleaner can help prevent charging errors and extend the device’s lifespan. Clean the charging contacts regularly and make sure to use original iRobot batteries to avoid compatibility issues.

In conclusion, the Error 21 Charging Error on the iRobot Roomba vacuum cleaner can be solved by following the aforementioned steps. If the problem persists, it is recommended to contact iRobot Customer Service for additional assistance. Keeping the robot clean and using original components are important measures to ensure proper functioning of the device.

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