... , pressure gauge displays: ”0”.3. After power on, press “ON” button to start heating, red light lit, at ... is low in the inner machine,“low level warning light” on, all functions of the machine will stops, ... Tighten pressure valve take off the cover “reset” on the right-below panel. Press reset button, now ... ,denture material ,bearing changing machine and so on.For more information,please contact us,we will ...