XPRT mattress works for several minutes then stops operating, then Serv. Req. By Qual. Pers. appears on footboard display under Bed Surface tab. I have changed the XPRT Pulmonary mattress and then XPRT control box and then the short gray cable from bed frame to control box, still getting message: Alarm Service Required By Qualified Personnel. I can reset error by unplugging XPRT Control Box, then it operates several minutes and message reappers. RE: Stryker - XPRT Mattress
