Arrived at location on 10/13/21 - Checked the top convection oven for customer. Unit power light and heat on and the no ignition light is on. Power off and on and it tries to light but goes into no ignition again. Removed the burner cover and power on and have spark but not strong and burner will light off but cuts out. Made an adjustment to the igniter assy and test. Have much better spark and burner lights off and stays on. Power off and on multiple times and open and close doors many times and unit reheats each time. Back in service. Unit is under warranty.