Freedom 20 Inverter / Charger

Call Tekris I used therm for a repair they are friendly reasonable and do excellent repairs Tel is 732 938 4996 Located in Farmingdale NJ.

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.

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.

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.

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..

it might be that it is not receiving power to charge it or the charging fuse or power input fuse is broken

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
Ian

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?

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

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.