found Convection Oven unit idle, disconnected power and turned off gas before removing service panels. accessed components to check voltage. gas valve measured 24volts and amp draw on ignitor is 3A. no gas leak was found from any connection on line. checked gas pressure when running and measured 4.5wc. adjusted gas pressure to 3.5wc to match what the data tag had called for. tested unit several times and is running properly. ran all units on the same gas line and pressure stayed the same at 3.5wc. unit is running okay.