Found Vulcan range oven At 25F thermostat 50F too cold at 35F thermostat off 100F. Tried calibrating and adjusting bypass flame will not adjust. Will order new thermostat. 9/7/18 Arrived on site to repair Vulcan range oven. proceeded and replaced left oven thermostat. proceeded to bring range back online. checked top burners.found front center burner off orifice. re-lit all pilots. open top burners, griddle and ovens. checked operation okay. brought left oven into operation to check operation. checked for leaks - none. checked open top burner and griddle operation okay. checked thermostat operation okay. cycles properly and low bypass flame set. double checked right oven operation okay. range oven in service.