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What kind of flashing light are you getting and the sequence? When did you have the batteries serviced last and what size are they and type if you know?
Then adding a few solar panels to the roof would help so the batteries are kept fully charged without running the engine or the generator. 150 watts of panels and a charge controller would do that. R.J.
You are welcome, Cathy..........and a positive rating on my service here would be greatly appreciated as that is the only way I am compensated for my time here. And please tell your friends about our service here at Just Answer! Be safe.........R.J.