I've got a pit boss 700 thats about 3 months old. I've already had to replace the control board and power cord due to an LO1 error. I haven't seen the error since replacing those parts but now I'm having problems with my fire going out. I start as normal and get a visible fire going. Tonight I had it preheated at 200 and turned it up to 350 to grill some chicken breast. Come to check on it about 15 minutes later and my fires out. This has happened multiple times this week and various settings and temps. Any tips?