Having a problem finding a replacement, "Cooling Unit Fan", for a SL100 CCU cabinet. Part# CPC A0345301. It is located in a 42-inch DMS Cabinet NT9X0104. -48VDC fan assembly, manfu-made in Germany. (GBMD3G146-AA05-05) is the unit part#....I have a US Manuf name "McLean Eng." but cannot find there contact info. HELP!!!