The answer to 'how to clean furnace repair' is to regularly clean and maintain your home's furnace to ensure it runs efficiently and safely. This includes cleaning or replacing the air filter, vacuuming the blower compartment, and inspecting the furnace components for any issues.
It's recommended to clean your furnace at the start of each heating season, typically in the fall. You can do some basic cleaning and maintenance tasks yourself, but it's best to have a professional HVAC technician service your furnace annually to perform a thorough inspection and cleaning.