4. Screw Compressors Symptom: Unit current large voltage is too low; loose wiring; unit pressure exceeds the rated pressure; oil separator core blockage; contactor fault; host failure; the main motor failure; 6. Screw Compressors failure phenomenon: the unit is too high discharge pressure of the intake valve failure; hydraulic cylinder failure; load solenoid valve (1SV) fault; the pressure is set too high; pressure sensor fault (Intellisys control unit); pressure gauge fault (relay control unit); Pressure Switch failure (relay control unit). BOGE BOGE air compressor air compressor sales in Germany, BOGE compressors, pneumatic machinery provided by Xingchang Xingchang Pneumatic Machinery Co., Ltd. Qingdao. Qingdao Xingchang Pneumatic Machinery Co., Ltd. (www.xckyj.com) strong, credible, Shandong Qingdao industry-specific equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xingchang Pneumatic Machinery and you hand into the brilliant, for a better future!