sunshinerader Posted March 13 Share Posted March 13 hi! lost coach power for no apparent reason. coach battery is great. isolator was tested and will close with power of 12v (where marked) - jumped from truck battery. but otherwise will not close. what gets the 12v to where marked? it seems like this is where the issue is. and what is this in second photo? any help super appreciated!!! Quote Link to comment Share on other sites More sharing options...
sunshinerader Posted March 13 Author Share Posted March 13 it’s also working when the truck is running. what powers the coach battery? thank you 💛 Quote Link to comment Share on other sites More sharing options...
sunshinerader Posted March 14 Author Share Posted March 14 evolving information 🤣 isolator closes with truck running - and electrical in coach works - but once truck is off, it’s open and there’s no coach power. seems like a voltage issue or does it need connection to the other piece in 2nd photo? Quote Link to comment Share on other sites More sharing options...
Ctgriffi Posted March 14 Share Posted March 14 I don't have a Sunrader but, when the truck is off, the isolator and all that stuff is basically out of the equation (that's kinda the point of that little gizmo). I think you need to be looking at the coach battery more closely (what is its current voltage right now?) and checking the connection between it and your rig's power center. There may be some corroded connections, or a bad fuse, or malfunctioning auto-resetting circuit breaker between the coach battery and the power center. Quote Link to comment Share on other sites More sharing options...
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