
<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr">I’ve replaced dozens of internal temp sensors over the years. </div><div dir="ltr"><br></div><div dir="ltr">I learned to also replace the fan at the same time. </div><div dir="ltr"><br></div><div dir="ltr">Or vice versa. </div><div dir="ltr"><br></div><div dir="ltr">Jay</div><div dir="ltr"><br><blockquote type="cite">On Jan 8, 2026, at 4:01 PM, Luke Christy via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><meta http-equiv="content-type" content="text/html; charset=utf-8">Drake,<div>I agree with Ray,<div>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. </div><div>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. </div><div><br id="lineBreakAtBeginningOfMessage"><div>

<meta charset="UTF-8"><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="text-align: start; text-indent: 0px; overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div>Luke Christy<br>Renewable energy consultant<br><br>NABCEP Certified PV Installation Professional™: <br><br>Solar Gain Services, LLC<br>PO Box 531<br>Monte Vista, CO 81144</div><div>719.588.3044<br>sgsrenewables@gmail.com</div></div></div>

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<div><br><blockquote type="cite"><div>On Jan 8, 2026, at 3:00 PM, Drake Chamberlin via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:</div><br class="Apple-interchange-newline"><div><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><div style="font-size: 10pt; font-family: Verdana,Geneva,sans-serif">

<div class="pre" style="margin: 0; padding: 0; font-family: monospace"><span style="font-size: 12pt;">A couple of years back, a client changed from lead acid batteries to LiFeBlue, lithium batteries. At that time the temperature sensor was removed. </span></div>

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<div class="pre" style="margin: 0; padding: 0; font-family: monospace"><span style="font-size: 12pt;">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.</span></div>

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<div class="pre" style="margin: 0; padding: 0; font-family: monospace"><span style="font-size: 12pt;">Is there any way to turn off the warning light?</span></div>

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<div class="pre" style="margin: 0; padding: 0; font-family: monospace"><span style="font-size: 12pt;">Thank you,</span></div>

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<div class="pre" style="margin: 0; padding: 0; font-family: monospace"><span style="font-size: 12pt;">Drake</span></div>

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<div class="pre" style="margin: 0; padding: 0; font-family: monospace"><p><em>Drake Chamberlin</em></p><p><em>Athens Electric LLC</em></p><p><em>Ohio Electrical Contractor’s License 44810</em></p><p><em>NABCEP Certified PV Installation Professional</em></p>

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