If you have a Prosine inverter/charger any other combo unit should have the same general wiring ( I think ).

We've had very good results with our 9 year old Heart 2500 watt inverter/charger and a Link 2000.

You don't have too many options on a combo unit but a suggestion might be to purchase a new unit the same as you had before, get the old one repaired (if possible) and either keep it as a backup or wire it in as an A-B setup. If one goes out you just flip the switch and you're in business.

I like redundancy and our Heart inverter/charger is a major piece of equipment aboard Tropical Dance.