I'm extremely disappointed in this Frigidaire "Professional" wall oven.  Since renovating my kitchen in 2020, I've had it repaired 3 times for the same issue.  It constantly beeps and shows an "F16" error code.  The motherboard has been replaced 3 times, but the same error code keeps returning.  These are my first Frigidaire appliances, and they haven't left a great impression on me.  My Frigidaire "Professional" Speed Oven has had the turn table replaced twice, My counter-depth "Professional" fridge is made from such low-grade stainless steel that it's covered in ripples, and the freezer door is crooked and hasn't closed properly since day 1.  All I can say is if you really want these appliances BUY the extended warranty.  I'm worried that I'm going to be left with extremely expensive paper weights once my extended warranty runs out.