No Inverter charge with shore but OK with genset

[davidbrady]

Ross,

Have you gotten any insight into this problem? We have complete M450 electrical schematics in our Document Library.

I looked at the power distribution schematics and everything after the first priority transfer switch is common to both systems, genny power or house power.

I keep thinking there's something going on with the energy management system. But that seems odd because you said you have two legs of 120VAC shore power making its way to the house loads. There may be something happening at the shore power, perhaps reverse polarity, or both legs actually being wired to only one in-phase source. Could the energy management system detect this and prune back the battery chargers? I'd check the poll for 2 separate legs of 120VAC. Put a voltmeter across the red and black leads to see if you're getting 240VAC.