iRobot Roomba 4100 Troubleshooting
The Roomba 4100 is an entry-level autonomous vacuum cleaner manufactured by iRobot.
Note: This troubleshooting guide is a work in progress.
Roomba won't turn on ¶
There is a problem with your power supply or battery.
Battery Test ¶
First ensure that the battery is properly seated and the particle bin is empty. Note that the battery takes overnight to charge. A green light indicates that the battery is functioning properly.
Battery Replacement ¶
Depending on how frequently you use your Roomba, the battery pack will need to be replaced every 1 to 3 years. If your battery pack has failed the battery test, the only repair option is to order another from a Roomba vendor and recycle the bad pack. Once the battery is replaced, hold down the power button for 5 seconds to reset the charging system.
Roomba only vacuums around in circles ¶
This is common problem known as the "circle dance". There are multiple suspects for this issue.
Cliff sensor is broken ¶
The cliff sensor is located at the front of the Roomba underneath the bumper. It may become dirty over time and require and cleaning from an air can. The cliff sensor itself is made of 4 separate sensors underneath the body.
Optical encoders are clogged ¶
The Optical encoders are sensors mounted inside the Roomba's wheels that help it move around. Over time, they may become clogged or blocked with dirt and require cleaning. This will require you to open parts of the body so the sensors can be cleaned with compressed air.
Wheel Jam ¶
The Roomba wheels are powered by two motors using a pulley system. The rubber pulley can slip off-track if the motors become jammed by dirt and hair. This problem can be solved by opening the Roomba's wheels covers.
Roomba is preforming poorly ¶
The Roomba requires regular maintenance to function properly.
General Cleaning procedure ¶
The Roomba should be cleaned weekly during use to ensure optimal performance. The air filter, beater bar, brush and squeege all need to cleaned on a regular basis with water after removing them from the vacuum. The Roomba's worst enemy is hair, because it accumulates around the sides of the brushes and adds significant strain onto the motors.
Performance tips ¶
The easiest way to increase performance on your Roomba is regular cleaning. It is also important to keep the Robot in the charging station when it is not in use.