Maintenance and cleaning issues in robot vacuums usually involve reduced performance, error messages, or abnormal noise caused by buildup rather than failed parts. In most repairs, clogged filters, wrapped hair, dirty sensors, or neglected brush assemblies are the primary cause. A common pattern we see is problems developing gradually as routine cleaning is delayed in dusty or high-pet environments. These tasks are low difficulty with very high success rates. Always inspect and clean thoroughly before assuming a component needs replacement.