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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.

The Roomba won't turn on ¶ 

There is a problem with your power supply or battery.

The battery is dead and needs to be replaced ¶ 

If the Roomba won't turn on, it may have a dead battery. Depending on how frequently you use your Roomba, the battery pack will need to be replaced every 1 to 3 years. If you have tried charging your Roomba overnight and it still won't turn on, the only repair option is to order another battery from a Roomba vendor and recycle the bad battery. Refer to Battery Replacement Guide

The Roomba is not cleaning effectively ¶ 

The Roomba is not picking up dirt, hair, or other debris.

The filter is clogged and may need to be replaced ¶ 

If your Roomba is leaving debris or dirt that should've been picked up, the filter may be clogged. The filter needs to be cleaned regularly or replaced after excessive use. Refer to Filter Replacement Guide

The main brush is not cleaning or rotating and may need to be replaced ¶ 

If the main brush is not cleaning or rotating, it may need maintenance. The main brush may need to be cleaned if it is clogged with debris. It may need to be replaced if it is worn down from excessive use. Refer to Main Brush Replacement Guide

The flexible rubber brush is not cleaning or rotating and may need to be replaced ¶ 

If the flexible rubber brush is not cleaning or rotating, it may need maintenance. The flexible rubber brush may need to be cleaned if it is clogged with debris. It may need to be replaced if it is worn down from excessive use. Refer to Flexible Rubber Brush Replacement Guide

The edge brush is not rotating ¶ 

The small blue brush that sticks out from underneath the Roomba is visibly broken or fails to rotate.

The edge brush is broken and needs to be replaced ¶ 

If the edge brush is not rotating or is damaged, it may be broken beyond repair. The edge brush is delicate and may need to be replaced after excessive use. Refer to Edge Brush Replacement Guide

The brushes are falling out of place ¶ 

The main brush and the flexible rubber brush might fall out of place if the brush guard constraining them is broken.

The brush guard is broken and needs to be replaced ¶ 

If the main brush or flexible rubber brush fall out of place, your brush guard may be broken. If it is broken beyond repair, a new brush guard may be purchased from a Roomba vendor. For brush guard replacement refer to Brush Guard Replacement Guide

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