Perform a liquid propane leak test.

LP Cylinder Leak Test

For your safety

• Leak test must be repeated each time LP cylinder is exchanged or refilled.
• Do not smoke during leak test.
• Grill must be leak tested outdoors in a well-ventilated area, away from ignition sources such as gas fired or electrical appliances.  During leak test, keep grill away from open flames or sparks.
• Use a clean paintbrush and a 50/50 mild soap and water solution.  Brush soapy solution onto areas indicated by arrows in figure below.