Xantrex Freedom 458 Combi inverter/charger 2000 watt

When the remote panel shows a red battery state, the DC amps are < 10, and the fan isn't running even when power in is applied, that says the unit is not charging. I recently had the same problem with my Freedom Marine 25, and the culprit was a blown relay (blackened burn spot) on the AC sensing card, which was $400 parts and labor at a Xantrex authorized service center. Being reasonably competent in electrical matters, I uninstalled the 50 lb beast, carried it in, and reinstalled it myself. If you can get somebody to sell you one you *could* replace the card yourself, but it took a trained service tech an hour on a test bench to do it, so for my money, not worth the effort and the risk that it might not fix the problem. Just be very careful; one wired misplaced on reinstall and you could fry the entire unit. When the remote panel shows a red battery state, the DC amps are < 10, and the fan isn't running even when power in is applied, that says the unit is not charging. I recently had the same problem with my Freedom Marine 25, and the culprit was a blown relay (blackened burn spot) on the AC sensing card, which was $400 parts and labor at a Xantrex authorized service center. Being reasonably competent in electrical matters, I uninstalled the 50 lb beast, carried it in, and reinstalled it myself. If you can get somebody to sell you one you *could* replace the card yourself, but it took a trained service tech an hour on a test bench to do it, so for my money, not worth the effort and the risk that it might not fix the problem. Just be very careful; one wired misplaced on reinstall and you could fry the entire unit.