UPS Repair and Service involves a range of tasks to ensure a system's reliability and longevity. Services typically include battery testing and replacement, which is the most common repair, as well as inspections of internal components like capacitors and cooling fans. Technicians also troubleshoot inverter failures and control board malfunctions. Regular, proactive maintenance and annual service contracts are crucial for identifying potential issues early, preventing costly downtime, and extending the life of the UPS.