[RE-wrenches] VFXR Slow charge

drake.chamberlin at redwoodalliance.org drake.chamberlin at redwoodalliance.org
Wed Dec 24 09:03:44 PST 2025



I think the equipment is just quirky. Our Radian system at home was 
doing a similar thing for a while. For some reason, with no parameter 
changes, it started working right most of the time.

_Drake Chamberlin_

_Athens Electric LLC_

_Ohio Electrical Contractor's License 44810_

_NABCEP Certified PV Installation Professional_

---

On 2025-12-23 14:53, William Miller via RE-wrenches wrote:

> Friends:
> 
> I was pleasantly surprised to get a call-back from Outback with a 
> familiar voice this morning.
> 
> The inverter has been charging to only 52 VDC at no more than 700 watts 
> since new. I had blamed the 3kW portable generator. We installed a new 
> Kohler 12 kW Gen and the problem continued.
> 
> I had tried all the suggestions to change re-bulk and re-float and even 
> reset to factory defaults. Nothing helped.
> 
> The OB tech suggested setting the Gen input to Backup and.... problem 
> solved.
> 
> I don't know why but I won't argue with success.
> 
> Curiously I have another almost identical system that charges just fine 
> on Generator setting.
> 
> If anyone can explain this I'd really like to know.
> 
> William Miller
> Miller Solar.com
> 805-438-5600
> www.millersolar.com [1]
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Links:
------
[1] http://www.millersolar.com
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