Should a home inspector test a pressure-relief valve for functionality?

A home inspector typically does not test a pressure-relief valve for functionality during an inspection. The primary role of a home inspector is to visually assess and report on the condition of various systems within a home, but invasive or operational testing of certain components, such as pressure-relief valves, is generally outside the scope of these inspections due to safety and liability concerns.

Pressure-relief valves are critical safety devices designed to prevent excessive pressure buildup in systems like water heaters or boilers. Testing them could result in water discharge or other potential hazards, which is why it's advisable for such testing to be performed by licensed professionals specializing in these systems.

In the context of the question, while it is important for these valves to be functional, their operation should be evaluated through maintenance checks performed by qualified technicians, not during a standard home inspection. This understanding helps clarify the scope and limitations of a home inspector's responsibilities.