Grease blobs and spider webs can clog the small gas ports in the burner tubes.
2.
Before replacing the burner tubes, clean the inside and outside of the grill housing with the vinyl brush.
3.
Before replacing the cleaned burner tubes, clean the inside and outside of the grill housing with the vinyl brush.
4.
Following the instructions in your owner's manual, disconnect the hollow burner tubes through which the gas flows and use the bottle brush to thoroughly clean the insides of the tubes.