The answer to 'how to clean furnace repair' is to regularly clean and maintain your furnace to ensure it runs efficiently and safely. This includes changing the air filter, cleaning the blower and burner components, and inspecting for any issues.
You should clean your furnace at least once a year, typically before the heating season begins. This helps remove dust, debris, and buildup that can reduce airflow and cause the furnace to work harder. If you have pets or live in a dusty area, you may need to clean it more often.