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binderman · 02-02-2022, 05:37 PM

Plugged into 50 amp service, but have lost our 12volt service. Monitor reads “No Inverter Comm, DC 13.9v, 34A.1.
Battery charger light is on, green light on inverter is flashing like it’s in search mode. No breakers popped, just no 12v service.
Can anyone tell us what to check or know what’s going on?
Thanks for responding.

6:25pm
12v back on after checking fuse in panel on outside drivers side compartment.
Fuse wasn’t blown so reinstalled and 12v came back on. Don’t know what made it go off in the first place.

Iceclimber · 02-02-2022, 06:15 PM

Unplug, reset inverter. Does 12v now work ? If no, then you may have tripped the inverter on board breakers that need reset. If yes 12v works ok fine when unplugged then plug in again. Same thing happens then the shore power connection is suspect and your inverter is shutting down to protect itself.

twinboat · 02-02-2022, 06:19 PM

12 volts doesn't come from the inverter, it comes from the batteries.

Have you checked the disconnect switch near the door. It may be off. That switch sends 12 volts to everything except the inverter/charger. That has a large 30p amp fuse in a large battery cable.

Iceclimber · 02-02-2022, 06:50 PM

Quote:

Originally Posted by twinboat

12 volts doesn't come from the inverter, it comes from the batteries.

Have you checked the disconnect switch near the door. It may be off. That switch sends 12 volts to everything except the inverter/charger. That has a large 30p amp fuse in a large battery cable.

Unless your inverter is like mine and so many others and wired into your house system.