Hi Apprentice 1, I guess it's a cold room, right? ... Surely the proofreader put "Camera". I am going to the topic: Could you measure the engine consumption with an amperometric clamp? ... In addition, the oil level normally drops since the oil begins to circulate throughout the equipment. If you put a lot of oil you can affect any valve of the equipment. Normally, new equipment comes with the right oil. You have to measure how many Amp. is consuming Do you also have a high and low pressure switch? ... Did you measure the high and low gas pressures? ... Please comment. Luck !