RISER ROOM DOOR CODE # 2474** The fire alarm system has been reported to go into alarm status intermittently. The current fire protection company stated it was a back-flow preventer issue, which another contractor (Lighthouse Plumbing) retested and passed. The assumption now leads to a probable faulty flow switch. Both the fire alarm and sprinkler department technicians will need to diagnosis the root cause of the intermittent fire alarm issue Sprinkler Service Call Service call to flow switch Service call to repair back-flow issue: ** The fire alarm system has been reported to go into alarm status intermittently. The current fire protection company stated it was a back-flow preventer issue, which another contractor (Lighthouse Plumbing) retested and passed. The assumption now leads to a probable faulty flow switch. Both the fire alarm and sprinkler department technicians will need to diagnosis the root cause of the intermittent fire alarm issue.