[RE-wrenches] FM100 Stuck in Silent Mode.

[Ray Walters]

I haven't had an FM 100 go bad yet, but I've seen other models and 
brands of controllers stay stuck in Silent mode, or Sleep mode, when 
they failed.   To avoid multiple trips to remote sites, I just swap it 
out with another, and then deal with getting the faulty controller 
repaired on my own time.  Magnum used to provide a fresh unit, and as 
long as I sent the old one back within 30 days, there was no charge.

Ray Walters
Remote Solar

On 12/10/2024 8:50 PM, John Blittersdorf via RE-wrenches wrote:
> HI Wrenches,
>    I  have an off grid site on an Island on auto pilot for the winter 
> with no access.  The FM 100
> has remained in Silent mode even when the Array Voltage is around  150 
> Volts and battery at 46V
> I did get a response from Outback Tech support but they couldn't 
> figure out what happened.
> I suspect that there is a ground or arc fault error which locks it up 
> til manually recycled.  The problem is that there is no indication 
> found on Optics that there is a ground fault.
> We would be totally in the dark except the original small solar array 
> with an Apollo CC with
> about a kilowatt of solar has been dribbling in enough power to keep 
> above low battery cutoff
> for a few hours each day.  The system was up when I was on the tech 
> support call but has since quit for the day. Has anyone seen this before?
>
> John Blittersdorf
>
>
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