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Do you know for sure that there is good AC power to that unit? And are you using any kind of adapter on the shore cord? Have you tried it on the genset? Do you have a small digital multimeter for some testing if that is needed? Get back to me with this and I can assist you further here.
Just wondering if you might need more on this or did you sort it out? I can furnish a manual for you or we can do a phone chat if you think that would be useful here.