Maintenance Checklist Start Smart. Don't rely on your memory or intuition. The burner flames should look blue or mostly blue with a tiny tip of yellow. Yellow or orange flames indicate a problem that should be corrected by a licensed contractor before you use the appliance again. If the flexible hose connected to the propane tank appears cracked or damaged, it needs to be replaced.
Barbecues have metal tubes, called venturi, extending under each burner.
Spiders or earwigs often crawl into these tubes and build a web or nest that could block gas flow and cause a fire. If your appliance does not have spider guards, you should check and clean the metal tube under each burner throughout the season. One way to test if your grill is leaking gas is to spray soapy water all over its hose, connections and fittings. If this is the case, you need to have your barbecue serviced, adjusted or repaired. Contact the store where you purchased it for the name of a licensed contractor to do the job.