You might have the MegaTech Board which only charges the battery when you go over the float charge level..So it charges your battery, then when house battery gets to float charge level...cuts out...
That board is being updated and I am ordering a new one from MegaTech the day it becomes available...Meanwhile, I have a Trik-L-Start hooked up now between house and chassis batteries while plugged in and being stored..This keeps all batteries up. When I get the new board when the weather warms up again before next season I intend to install it. (My board is in the front driver bay and you can see where the batteries go into it.) I don't your coach and am basing my guess above on what I have. Mine will keep coach when using it, but during storage, once I hit float charge...the house batteries drop out and the Trombetta Relay no longer stays closed.
Hook up a Trik-L-Start now or depending on your inverter manufacturer (Xantrex or Magnum) they both make units you can add on for a bit more. Trik-L-Start was my best workaround until the new board is available.
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Stuart and Stella Denning
2016 Entegra Aspire 42RBQ
3 Bullies and a Diesel Pusher
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