Im having Intermittent power issues with my nav pilot 711C with 2 head units that (until recently) have worked mostly fine since installed a few years ago. System randomly shuts down since i plugged in the 2nd head unit this month (after it was stored inside for winter -2nd head is at an outside station). Sometimes system beeps and starts to boot up then shuts down before diagnostic screen. Sometimes boots up and fine for a while but shuts down later, randomly. Problem seems to disappear (so far) when only the 1 inside head unit at main helm is connected.
The outside head is kept inside all winter..and outside data/Power plug is smeared with dielectric grease and sealed in a bag. I noticed this problem once or twice towards end of last fall, which was the first season after I had first greased outside connections for winter.
All connections look new, terminators plugged in both head units empty plugs. 2nd unit direct connect to system... not daisy chain. When working, voltage to unit shows 14.1. Unit is run through a new 20 amp breaker which has not tripped. Engaging the Autopilot does not trigger issue. Just random.
Maybe dielectric grease from winterizing outside connector/unit causing the issue? Maybe too much in sockets/on pins causing just enough resistance to cause issues? Lots of contradictory info out there on dielectric grease and resistance. I thought was ok oj tight connectors but maybe not? Should I clean out terminals with alcohol or crc cleaner? Or maybe totally unrelated to issue?
Any advice welcome!
The outside head is kept inside all winter..and outside data/Power plug is smeared with dielectric grease and sealed in a bag. I noticed this problem once or twice towards end of last fall, which was the first season after I had first greased outside connections for winter.
All connections look new, terminators plugged in both head units empty plugs. 2nd unit direct connect to system... not daisy chain. When working, voltage to unit shows 14.1. Unit is run through a new 20 amp breaker which has not tripped. Engaging the Autopilot does not trigger issue. Just random.
Maybe dielectric grease from winterizing outside connector/unit causing the issue? Maybe too much in sockets/on pins causing just enough resistance to cause issues? Lots of contradictory info out there on dielectric grease and resistance. I thought was ok oj tight connectors but maybe not? Should I clean out terminals with alcohol or crc cleaner? Or maybe totally unrelated to issue?
Any advice welcome!