20 Most Recent Xantrex Technology Xantrex 458 10 12 Freedom 1,000 Watt Inverter/Charger Questions & Answers

Best bet is to visit mfg web site for assistance.

Upgrade to one of the Freedom remotes, the 458 has different software, and features than the old Freedom 1500.

It sounds like a bad battery mine did the same but it was a much larger unit changed the house AGM Batteries and works perfectly

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You need to add up all of the loads connected to the inverter. A 120watt load at 120 volts equals a load of 10 amps at 12 volts. Watts= VoltsXAmps. Add to that any other load on the battery - radio, lights, etc. and the standard vehicle battery will be dead in a short time. You need to either have a bank of large batteries, such as two or three group 27 batteries in parallel, or you need to keep the van running so the alternator can keep the battery charged.

My experience has been thay there is no real "bench test" available to the general public. You can do some testing if you are familiar with how to read the color codes on resistors, and know how to test relays. There are two fuses inside, so you can check their continuity. Before going to this trouble though, get on line and download the Xantrex trouble shooting guide, bulletin No. 512-0084001-01 rev1. If that is ok, it'll be a trip to the dealer, where you'll learn that it costs about $400 to replace the board. I'm on my second one, in two years, so they aren't a long life article I'm afraid.Hope this is helpful for you.

this isn't an answer but i would like to just clear the water a little. how old is the unit? you say it the inverter works when on shore power ( 110v A.C. wall plug or 220 ) but it will not charge the batteries while hooked up to shore power? are you trying to use a generator to run the inverter and charge the batteries? I just need to a little more so i can better understand you problem and help you better
Looking forward to hearing back from you.
M.Woodring

Unfortunately, to protect their proprietary designs, Xantrex does not provide parts or schematics except to their factory authorized service network. Assuming it is not still under warranty that would be voided by removing the cover, you might be able to see any obvious damage and procure the necessary repair parts from a third party, but that might be a lot of trouble to track down without any guarantee that it would actually fix the problem. If the unit cannot be uninstalled and/or brought to a service center, some reps do make "house calls", albeit for a fee.

In google type what model it is then after that type internal wiring diagram.