Did the pressure drop off when you shut off the tank valve? Give it 15 seconds. If it drops at all, it will cause a relevel. Also, when the oil cools off, it will contract which will cause a relevel. Hit your manual lowering button and cause a relevel 6 or 7 times in a minute and see if it throws an 06 fault. We use IGV valves, but dont use the controller.
