Found Convection Oven timer is not keeping temp right. Need to order timer/temperature control board and return for repair. Called parts department @ Blodget and got the part number. 10/30/19 Removed power from unit removed panels to get to controller. replaced controller and out back together and tested at 2 minutes. timed down exactly 2 minutes unit came to set point and cycled. unit back in service, unit operational, job complete.