Today, I repaired an A.O. Smith electric water heater in a residential home that was failing to produce hot water. The diagnostic revealed a burnt-out heating element and a faulty thermostat. I replaced both components and flushed the tank to remove sediment buildup, which improves efficiency and prolongs the unit's lifespan. I also adjusted the temperature settings to ensure safe and optimal operation. This repair restored consistent hot water supply and enhanced the system's overall performance.