Wrenches. Jay As l recall all the fans are the same PN same with the sensors. Just relocate the temp sender to the new location as l recall it is on top of the xfmr. Fun times
On Fri, Jan 9, 2026, 3:52 PM jay via RE-wrenches < [email protected]> wrote: > HI Chris, > > They are all 12v fans and universal between 12,24,48v units > > jay > > On Jan 9, 2026, at 4:35 PM, Chris Schaefer via RE-wrenches < > [email protected]> wrote: > > While on the subject of VFX inverters in regards to the fan and internal > temp sensors, I've got a client with a circa 2010 VFX3624 that appears to > have a failed fan. I don't normally deal with 24 volt inverters. I've got > many dead VFX3648 units hanging out. My question is can I cannibalize a fan > out of a 48 volt unit and put it in a 24 volt unit? Next, let's say the fan > is ok and based on the readings above I should look into replacing the xfmr > temp sensor. Again, can I take one out of a 48v inverter and use it on a > 24v unit? Which board might be suspect as well that the xfmr temp sensor > feeds its information too? > > Thanks, > Christopher > > On Thu, Jan 8, 2026 at 9:23 PM Jerry Shafer via RE-wrenches < > [email protected]> wrote: > >> Wrenches, Jay, >> Transformer temp sensors in the FX Fails, fans fail causing fet boards to >> overheat, dirty filters cause high temps on all the intervals. When outback >> was still running the parts department you always got temp senders with >> fans, boards and a relocation procedure, yes you must put the sensor in a >> new location. >> FunTimes >> >> On Thu, Jan 8, 2026, 3:26 PM Jay via RE-wrenches < >> [email protected]> wrote: >> >>> I’ve replaced dozens of internal temp sensors over the years. >>> >>> I learned to also replace the fan at the same time. >>> >>> Or vice versa. >>> >>> Jay >>> >>> On Jan 8, 2026, at 4:01 PM, Luke Christy via RE-wrenches < >>> [email protected]> wrote: >>> >>> Drake, >>> I agree with Ray, >>> The message you’re seeing does not refer to the RTS that has been absent >>> for years- it’s an issue with an internal sensor. >>> I have seen intermittent warnings relating to internal sensors on VFX >>> units that have self-resolved with a reboot, but if the warning is >>> persistent then you’ll likely need to open the unit up and replace the >>> sensor. >>> >>> Luke Christy >>> Renewable energy consultant >>> >>> NABCEP Certified PV Installation Professional™: >>> >>> Solar Gain Services, LLC >>> PO Box 531 >>> Monte Vista, CO 81144 >>> 719.588.3044 >>> [email protected] >>> >>> On Jan 8, 2026, at 3:00 PM, Drake Chamberlin via RE-wrenches < >>> [email protected]> 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* >>> >>> >>> -- >>> >>> _______________________________________________ >>> List sponsored by Redwood Alliance >>> >>> Pay optional member dues here: http://re-wrenches.org >>> >>> List Address: [email protected] >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> There are two list archives for searching. 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When one doesn't work, try the >> other: >> https://www.mail-archive.com/[email protected]/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> > > -- > > Chris Schaefer’s > > > *Tel 585-229-2083 or Cell 585-748-1870 * > *5115 S Hill Road ~ Canandaigua New York 14424 > <https://www.google.com/maps/search/5115%0D%0AS+Hill+Road+~+Canandaigua+New+York+14424?entry=gmail&source=g>**www.solarandwindfx.com > <http://www.solarandwindfx.com/> ~ E-mail: [email protected] > <[email protected]>* > > > Thomas Jefferson, the author of our great Constitution, once said, > "democracy" will cease to exist when you take away from those who are > willing to work and give to those who would not." > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. 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