Gas grill prob.

Barbecue Repair Parts Don't let spiders crawl into your venturis, yearly maintenance part are available. If you notice that your Barbecue is getting hard to light or that the flame isn't as strong as it should be, take the time to check and clean the VENTURIS. In some areas of the country, spiders or small inserts have been known to create "flashback" problems. The spiders spin webs, build nests, and lay eggs in the BARBECUE VENTURI TUBE (s)obstructing the flow of gas to the BURNER. The backed-up gas can ignite in the venturis behind the control panel. This is known as a flashback, and it can damage your Barbecue and even cause injury. To prevent flashbacks and ensure good performance the BARBECUE BURNER and VENTURI assembly should be removed from the grill and cleaned before use whenever the BARBECUE has been idle for an extended period of time.

Also, when you lite the BBQ, make sure that you turn the gas on at the tank, wait a couple of minutes and then turn the knob on and light the burner. This is to make sure that the pressure is regulated and sufficient prior to lighting.

Hope this helps!