The homeowner reported a loss of hot water following a recent replacement of the lower heating element. Upon arrival, we found the safety reset on the upper thermostat had tripped, indicating a likely failure of the upper heating element and weakened thermostats. We recommended a full thermostat rebuild, including replacement of the remaining heating element and both thermostats, to restore efficient operation, improve performance, and extend the service life of the water heater. Water was shut off and the tank was drained below the upper element to complete the repairs. The upper element was found to be heavily coated with calcium buildup, which likely contributed to the failure. Both upper and lower thermostats were replaced, the unit was refilled, air was purged from the system, and power was restored. Proper operation was confirmed with the upper element heating and warm water verified at the fixture prior to departure.
