Question about Xantrex Technology Heart Freedom 20 12 Inverter

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Freedom 20 Inverter / Charger

Converter will not charge the house batteries in my motor home. AC works fine. Once the " Over load" LED lit up. I unplugged the AC input and replugged it. The Over load has not come back on since. Any auggestions?

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Same happened to me on fleetwoo rv. the switch on the control panel was bad. put a new remote switch on works fine. hope i helped. if the remote switch port on the inverter has no wire going to it the remote might fix it.bypass the main circuit board. buxtonman`~`

Posted on Apr 07, 2009

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1997 monoco dynasty and the invorter heart interface freedom model 20 the problem we are having is the we don't get any powere from the electric outlet and the lights don't work and there is a reading in side on wall that tells you about your electricity and it reads overload my # 817-614-7576 donna

Posted on Mar 01, 2009

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My freedom 20 charger/inverter does not seem to drop down to a float charge and continues to charge batteries at a rate which makes it necessary to add water continually to my house batteries which consist...


The charger has four distinct charging stages - 1) Bulk, 2) Acceptance, 3) Float, and 4) Equalization. If your batteries are old and therefore won't reach full charge, the charger may not be able to get them up to the voltage where float charging kicks in. If you ever allowed the water in the batteries to get down to where the plates were exposed, one or more of your batteries may be contaminated with excessive sulfate buildup on the plates. The equalization process (Stage 4,which must be entered manually) will help to return any excessive sulfate builup back into solution, so you might try that and see if the performance improves.

Sep 26, 2010 | Xantrex Technology Heart Freedom 20 12...

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Appears to not be charging but does produce 110


Anytime external AC is being applied, the unit passes that AC input through to the output, independent of inverter/charger status. If external AC power is available but the unit is not charging (i.e. the Charge light is lit, but the batteries are not charging up as they should), then there is likely a problem with the AC sensing circuit card inside the unit, with a 1/4 amp fuse and/or the AC transformer the most probably culprits. Without external AC, the inverter will function all the way down to 10V, but then will shut off, so as long as your batteries have not been totally depleted,the unit will still be able to produce 110 AC after a brief charge cycle, but it won't for long.

Sep 17, 2010 | Xantrex Technology Heart Freedom 20 12...

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Hello I have 40 foot 2006 fleetwood revolution and my problem the batterys would not go into chargeing mode and the red fault stayed lit. And then a electrical smell and shorting noise came out of the...


Your Freedom 458 has died. At this point, you need to isolate the batteries from the inverter / charger unit to prevent further risk of fire.

It is normal, with the fried charger, for the battery voltage to plummet even while plugged in. There is no converter to maintain them. When you start your rig, the alternator on the engine is charging the batteries. With the rapid drop in battery voltage, your inverter likely is shorted.

Remove the main battery fuse between the inverter and batteries, as well as unplug / turn off the breaker to the inverter /charger. Take your coach to the nearet service center, as it may still be under (partial?) warranty.

Aug 30, 2010 | Xantrex Technology Electronics - Others

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Xantrex 458 freedom....has stopped charging house batteries off of engine alternator. Alternator is showing that it works (dash gauge). It does charge while on shore power or generator....but not charging...


Fis\rst of all is the inverter supplying 120 VAC? when turned on?. If so the inverter seems to be working.I think your problem is in the truck alternator/charging system. The inverter is independent of this charger..

Mar 23, 2010 | Xantrex Technology Xantrex 458 10 12...

2 Answers

Freedom 20 Inverter/Charger Overload will not reset.


When I switch my Freedom inverter on it shows E02 fault Low battery voltage. I have had the batteries tested and they are okay.
When I plug into the mains to charge batteries the Chrgeheart interphase shows charging light but nothing happens No current.
If anyone could advise I would greatly appreciate it. Thanks
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Dec 16, 2009 | Xantrex Technology Heart Freedom 20 12...

1 Answer

Freedom 20 stopped working after ac breaker tripped


How do you get the PCB out all the 4 screws are out and clips are pushed off the pcb contacts on the sides. Unscrewed the antenna, but not the soldered in bulk antenna mount. I is still locked in somehow? how do I get the board out to look at the keypad buttons so I can see if threre is a bad contact?

Sep 10, 2009 | Xantrex Technology Heart Freedom 20 12...

1 Answer

Heart inverter had over temp led on


the temp control sensor is optional. If not connected the charger will charge at its default charge. No problem

Jul 20, 2009 | Xantrex Technology Heart Freedom 20 12...

2 Answers

Inverter won't charge


check if the inverter has a fuse for the charger, if it does test it if it is still ok if not change it

Mar 09, 2009 | Xantrex Technology Heart Freedom 20 12...

1 Answer

Xantrex Freedom 458 Combi inverter/charger 2000 watt


OK my 2000 Discovery does the same thing. Try and hit the inverter charger with your fist 3-4 times, then listen and see if the charger fan starts up. I will be bringing my inverter to Portland this week to have the tech look at it. The other thing is it could be the transfer switch. Will let you know.

Jan 15, 2009 | Xantrex Technology Heart Freedom 20 12...

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