You are inspecting the ductwork in an existing home and notice that the airflow is significantly reduced. What is the first step in troubleshooting this issue?
- ACheck the air filter.
- Inspect the ductwork for leaks and obstructions.
- CMeasure the airflow at the registers.
- DReplace the furnace fan motor.
Exam tip
Always start with a visual inspection when troubleshooting airflow issues.
Why B is correct
The first step in troubleshooting reduced airflow is to inspect the ductwork for leaks and obstructions, as per the general principles of HVAC system maintenance.
