[RE-wrenches] Battery Sensor Light on VFX3648

[Ray Walters]

I'm not 100%, but I think the warning light might be for the temp sensor 
on the FET board internal to the inverter.  I've had to replace those a 
few times.  I think I even have a replacement sensor on the shelf, if 
you need.

Ray Walters
Remote Solar

On 1/8/2026 3:00 PM, Drake Chamberlin via RE-wrenches wrote:
> A couple of years back, a client changed from lead acid batteries to 
> LiFeBlue, lithium batteries. At that time the temperature sensor was 
> removed.
> The other day, a warning light started blinking. The warning turned 
> out to be a bad temperature sensor. It is strange that this message 
> showed up now, as the sensor has been gone for years.
> Is there any way to turn off the warning light?
> Thank you,
> Drake
>
> /Drake Chamberlin/
>
> /Athens Electric LLC/
>
> /Ohio Electrical Contractor’s License 44810/
>
> /NABCEP Certified PV Installation Professional/
>
>
>
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