{"product_id":"control-board-mcb-39h0043-00","title":"Wine Guardian Control Board MCB 39H0043-00","description":"\u003cdiv class=\"wgd-acc-page\"\u003e\n\u003csection class=\"wgd-sec\"\u003e\u003cdiv class=\"wgd-inner\"\u003e\n\u003cspan class=\"wgd-eyebrow\"\u003eControls \u0026amp; Switches\u003c\/span\u003e\u003ch2 class=\"wgd-product-title\"\u003eWine Guardian Control Board MCB 39H0043-00\u003c\/h2\u003e\n\u003cdiv class=\"wgd-overview-intro\"\u003e\n\u003cp\u003eThe Wine Guardian Control Board MCB (part 39H0043-00) is the genuine replacement main control board for all Wine Guardian cooling units manufactured after January 2020. It runs the unit's logic: temperature control, fan and compressor staging, and the display.\u003c\/p\u003e\n\u003cp\u003eIt is commonly ordered when a unit shows a dead or garbled display, components that no longer respond, or erratic behavior that persists after power supply and sensors check out. As an authorized Wine Guardian dealer, we supply genuine Wine Guardian parts; units built before January 2020 use a different board, so confirm your serial number before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wgd-sec\"\u003e\u003cdiv class=\"wgd-inner\"\u003e\n\u003cspan class=\"wgd-eyebrow\"\u003eSpecifications\u003c\/span\u003e\u003ch2 class=\"wgd-h2\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"wgd-spec\"\u003e\n\u003cdiv class=\"wgd-spec-row\"\u003e\n\u003cspan class=\"wgd-spec-label\"\u003ePart Number\u003c\/span\u003e\u003cspan class=\"wgd-spec-val\"\u003e39H0043-00\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wgd-spec-row\"\u003e\n\u003cspan class=\"wgd-spec-label\"\u003ePrice\u003c\/span\u003e\u003cspan class=\"wgd-spec-val\"\u003e$399.00\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wgd-spec-row\"\u003e\n\u003cspan class=\"wgd-spec-label\"\u003eType\u003c\/span\u003e\u003cspan class=\"wgd-spec-val\"\u003eMain control board (MCB)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wgd-spec-row\"\u003e\n\u003cspan class=\"wgd-spec-label\"\u003eFits\u003c\/span\u003e\u003cspan class=\"wgd-spec-val\"\u003eAll Wine Guardian units manufactured after January 2020\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wgd-sec\"\u003e\u003cdiv class=\"wgd-inner\"\u003e\n\u003cspan class=\"wgd-eyebrow\"\u003eCompatibility\u003c\/span\u003e\u003ch2 class=\"wgd-h2\"\u003eWhat It Fits\u003c\/h2\u003e\n\u003cul class=\"wgd-fits\"\u003e\n\u003cli\u003e\n\u003cspan class=\"wgd-fits-tick\"\u003e✓\u003c\/span\u003e\u003cspan\u003eAll Wine Guardian cooling units manufactured after January 2020\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"wgd-fits-tick\"\u003e✓\u003c\/span\u003e\u003cspan\u003eUnits built before January 2020 use a different board; verify by serial number before ordering\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wgd-sec\"\u003e\u003cdiv class=\"wgd-inner\"\u003e\u003cdiv class=\"wgd-col-note\"\u003e\n\u003cp\u003eSee how a board swap is done in the \u003ca class=\"wgd-inline\" href=\"\/pages\/wine-guardian-control-board-replacement\"\u003econtrol board replacement video\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eBrowse the full range in \u003ca class=\"wgd-inline\" href=\"\/collections\/parts-and-accessories\"\u003eParts and Accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wgd-sec\"\u003e\u003cdiv class=\"wgd-inner\"\u003e\n\u003cspan class=\"wgd-eyebrow\"\u003eRelated Parts\u003c\/span\u003e\u003ch2 class=\"wgd-h2\"\u003eAccessory Siblings\u003c\/h2\u003e\n\u003cdiv class=\"wgd-rel\"\u003e\n\u003ca class=\"wgd-rtile\" href=\"\/products\/defrost-sensor-39h0040-02\"\u003e\u003cspan class=\"wgd-rtile-body\"\u003e\u003cspan class=\"wgd-rtile-name\"\u003eDefrost Sensor 39H0040-02\u003c\/span\u003e\u003cspan class=\"wgd-rarr\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003ca class=\"wgd-rtile\" href=\"\/products\/remote-interface-controller\"\u003e\u003cspan class=\"wgd-rtile-body\"\u003e\u003cspan class=\"wgd-rtile-name\"\u003eRemote Interface Controller 91H0105-01\u003c\/span\u003e\u003cspan class=\"wgd-rarr\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wgd-sec\"\u003e\u003cdiv class=\"wgd-inner\"\u003e\n\u003cspan class=\"wgd-eyebrow\"\u003eFAQ\u003c\/span\u003e\u003ch2 class=\"wgd-h2\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails class=\"wgd-faq\" name=\"wgd-faq-group\"\u003e\u003csummary\u003eWhich units does the 39H0043-00 control board fit?\u003c\/summary\u003e\u003cdiv class=\"wgd-faq-body\"\u003eIt fits all Wine Guardian cooling units manufactured after January 2020, across configurations. Units built earlier use a different board, so verify your unit's serial number before ordering.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"wgd-faq\" name=\"wgd-faq-group\"\u003e\u003csummary\u003eHow do I know the control board has failed?\u003c\/summary\u003e\u003cdiv class=\"wgd-faq-body\"\u003eTypical signs are a dead or garbled display with power confirmed, fans or compressor that never stage, or erratic behavior that persists after sensors check out. Cheaper faults can mimic a bad board, so confirm power and sensors first.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"wgd-faq\" name=\"wgd-faq-group\"\u003e\u003csummary\u003eCan I replace the control board myself?\u003c\/summary\u003e\u003cdiv class=\"wgd-faq-body\"\u003eThe swap is connector-for-connector with power disconnected, and our replacement video shows the process on a TTW unit. If you are not comfortable documenting and re-landing wiring inside line-voltage equipment, use a qualified technician.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"wgd-faq\" name=\"wgd-faq-group\"\u003e\u003csummary\u003eIs this a genuine Wine Guardian part?\u003c\/summary\u003e\u003cdiv class=\"wgd-faq-body\"\u003eYes. As an authorized Wine Guardian dealer we supply genuine Wine Guardian replacement parts sourced through the manufacturer.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"wgd-sec\"\u003e\u003cdiv class=\"wgd-inner\"\u003e\u003cdiv class=\"wgd-cta\"\u003e\n\u003ch2\u003eConfirm Your Serial Number First\u003c\/h2\u003e\n\u003cp\u003eSend your model and serial number and our team will confirm this board fits your unit. Final fit and installation should be confirmed with official Wine Guardian documentation and a licensed HVAC professional or qualified contractor.\u003c\/p\u003e\n\u003cdiv class=\"wgd-cta-btns\"\u003e\n\u003ca class=\"wgd-btn\" href=\"\/collections\/parts-and-accessories\"\u003eBrowse All Parts and Accessories\u003c\/a\u003e\u003ca class=\"wgd-btn--ghost\" href=\"\/pages\/contact-us\"\u003eContact Us\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\n\u003c\/div\u003e\u003cstyle\u003e.wgd-acc-page{color:#23150f;}.wgd-sec{padding:30px 0;border-top:1px solid #ececed;}.wgd-sec:first-of-type{border-top:none;}.wgd-inner{max-width:1120px;margin:0 auto;padding:0 22px;}.wgd-eyebrow{display:inline-block;background-color:#5A1A0E;color:#ffffff;font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;padding:6px 15px;border-radius:30px;margin-bottom:14px;}.wgd-product-title{font-size:26px;margin:0 0 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summary{cursor:pointer;list-style:none;padding:16px 50px 16px 20px;font-weight:700;color:#300B05;position:relative;background-color:#f6f6f7;}.wgd-faq summary::-webkit-details-marker{display:none;}.wgd-faq summary:after{content:\"+\";position:absolute;right:18px;top:50%;transform:translateY(-50%);width:26px;height:26px;line-height:24px;text-align:center;border-radius:50%;background-color:#300B05;color:#ffffff;}.wgd-faq[open] summary{background-color:#300B05;color:#ffffff;}.wgd-faq[open] summary:after{content:\"\\2212\";background-color:#C8A24A;color:#300B05;}.wgd-faq-body{padding:16px 20px;font-size:14px;line-height:1.6;color:#344047;}.wgd-acc-page a.wgd-inline{color:#5A1A0E;text-decoration:underline;font-weight:700;}.wgd-cta{background-color:#300B05;color:#ffffff;border-radius:18px;padding:40px 34px;text-align:center;position:relative;overflow:hidden;}.wgd-cta:before{content:\"\";position:absolute;left:0;top:0;width:100%;height:6px;background-image:linear-gradient(90deg,#C8A24A 0%,#A3BD04 50%,#C8A24A 100%);}.wgd-cta h2{color:#ffffff!important;font-size:26px;margin:0 0 14px;}.wgd-cta p{color:#E8Cf93;max-width:680px;margin:0 auto;font-size:15px;}.wgd-cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:24px;}.wgd-btn{display:inline-block;background-color:#C8A24A;color:#300B05!important;text-decoration:none;font-weight:800;padding:14px 28px;border-radius:999px;}.wgd-btn--ghost{display:inline-block;background-color:transparent;color:#ffffff!important;text-decoration:none;font-weight:700;padding:14px 28px;border-radius:999px;border:2px solid #C8A24A;}@media(max-width:768px){.wgd-rel{grid-template-columns:1fr;}.wgd-spec-row{grid-template-columns:1fr;}.wgd-spec-val{border-left:none;border-top:1px solid #e4e4e5;}}\u003c\/style\u003e","brand":"Wine Guardian","offers":[{"title":"Default Title","offer_id":48086888153318,"sku":"39H0043-00","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/6358\/9350\/files\/WineGuardianControlBoardMCB39H0043-00.webp?v=1785439151","url":"https:\/\/wineguardiandealer.com\/products\/control-board-mcb-39h0043-00","provider":"Wine Guardian Dealer","version":"1.0","type":"link"}