Home Inspection State Practice Exam

Which of the following maintenance issues could lead to water heater failure?

1. Regular flushing of the tank

2. Accumulation of sediment

3. Checking anode rod annually

4. Ensuring proper gas connections

The correct answer is: Accumulation of sediment

The accumulation of sediment in a water heater can significantly impact its performance and longevity, which is why it's identified as a critical maintenance issue that could lead to failure. Over time, minerals and debris can settle at the bottom of the tank, forming sediment buildup. This accumulation hinders the heating efficiency by insulating the heating element, leading to increased energy consumption and, eventually, overheating. If left untreated, sediment can also cause corrosion or damage to internal components, resulting in leaks or complete water heater failure. Regular tank flushing helps mitigate sediment buildup, and checking the anode rod is essential for preventing corrosion. Ensuring proper gas connections is crucial for safety and functionality but does not directly relate to the internal failures caused by sediment accumulation. Therefore, understanding and addressing sediment buildup is vital for the effective maintenance of a water heater.