Arrived at location on 9/1/22 - Found heat deflector burnt out and laying atop burner. Gas valve handle hard to turn and hard to get gas to flow thru valve when turned. Called blodgett for part numbers will quote repair. Spoke with Mark at blodgett. Returned to location on 9/16/22 - Removed stone from oven then removed broken bottom panels. Upon installing new bottom panels found they required some adjustment in order to fit due to support rails out of square. Adjusted panels as necessary. Put stone back in. Changed out main gas ball valve. Started oven ok.