May have found one

[davidbrady]

Good Luck Jerry. Schneider now owns Xantrex which purchased Trace. They may be referring to the Schneider SW4024 which some are fitting to their Prevosts, or they may have replaced the inverters with good working but older Trace/Xantrex SW4024's. Get receipts and records for all work done. See if you can get service info from Prevost. The batteries may need to be individually load tested to see if they're okay. If they check out good you can save a lot of money by keeping them in service.