Costco Nexgrill Monster I Just Bought A New Grill From Costco, Should I Have To Keep The Searing Button Pushed In For It To Stay Lit?

I just bought a new grill from costco, should i have to keep the searing button pushed in for it to stay lit? - costco nexgrill monster

I recently completed a brand new grille over $ 800 at Costco. There are four burners, burn nexgrill done by including a side burner, rotisserie burner. Everything works fine, but I have a big problem. To operate the burner combustion, I have to run as normal, then I have to keep control, or not stay lit! Propane is flowing. Perhaps for reasons of safety for the burner does not burn too hot? keep the user guide, she says 15 seconds and stays on then, I held in a maximum of three minutes and still not working. Why?