Which of the following is a regular maintenance task for an electric water heater?

• A. Inspect the exhaust vent
• B. Replace the anode rod
• C. Clean the exterior
• D. Check thermostat setting and electrical connections

Answer: (D)

Regular maintenance of an electric water heater centers on safe operation and reliable heating. The thermostat setting determines how hot the water gets, and the electrical connections ensure the unit is receiving power correctly and safely. Periodically verifying both helps prevent issues like scalding, energy waste, and electrical hazards, making this the routine task you’d perform most often.

The other options don’t fit as regular tasks for an electric unit. Inspecting an exhaust vent isn’t relevant because electric heaters don’t burn fuel and don’t produce combustion exhaust. Replacing the anode rod is important for tank longevity, but it’s done based on the rod’s condition and water quality rather than as a standard, frequent maintenance item. Cleaning the exterior is mainly cosmetic and doesn’t impact operation or safety.