{"product_id":"45-2731-genuine-thermo-king®-sr4-precedent-motherboard-controller","title":"45-2731 | Genuine Thermo King® SR4 Precedent Motherboard Controller","description":"\u003cdiv class=\"ftp-desc\"\u003e\n\u003cp\u003eA Thermo King SR-4 (Smart Reefer 4) Precedent Refrigeration Unit Motherboard\/Controller\u003cstrong\u003e 45-2731\u003c\/strong\u003e is the main electronic control board used in a Thermo King Precedent trailer refrigeration system. It acts as the brain of the refrigeration unit, controlling the cooling system and helping maintain the correct temperature inside a refrigerated trailer.\u003c\/p\u003e\n\u003ch3\u003eGeneral Specifications\u003c\/h3\u003e\n\u003cdiv class=\"ftp-table-wrap\"\u003e\n\u003ctable class=\"ftp-spec\" style=\"width: 100.029%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width: 20.9003%;\"\u003eCondition\u003c\/th\u003e\n\u003ctd style=\"width: 78.7781%;\"\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width: 20.9003%;\"\u003ePart Number\u003c\/th\u003e\n\u003ctd style=\"width: 78.7781%;\"\u003e45-2731, 452731\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width: 20.9003%;\"\u003eBrand\u003c\/th\u003e\n\u003ctd style=\"width: 78.7781%;\"\u003eThermo King\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width: 20.9003%;\"\u003eFits\u003c\/th\u003e\n\u003ctd style=\"width: 78.7781%;\"\u003e\n\u003cdiv\u003eThermo King Precedent trailer refrigeration units.\u003c\/div\u003e\n\u003cdiv\u003eSpecifically, SR-4 multi-temperature control systems.\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePurpose \u0026amp; Function\u003cbr\u003e\n\u003c\/h3\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eControls cooling operation\u003c\/span\u003e\u003cspan\u003e – Helps manage the refrigeration system.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eRegulates temperature\u003c\/span\u003e\u003cspan\u003e – Helps maintain the temperature set by the operator.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eControls electrical components\u003c\/span\u003e\u003cspan\u003e – Coordinates signals between sensors, fans, compressors, and other components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eMonitors system performance\u003c\/span\u003e\u003cspan\u003e – Receives information from sensors and helps detect system problems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eManages system functions\u003c\/span\u003e\u003cspan\u003e – Coordinates refrigeration operation and control settings.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eSigns of a Bad Precedent Motherboard Controller\u003c\/h3\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eRefrigeration unit will not start.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eCooling system does not work properly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eTemperature inside the trailer fluctuates.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eController screen displays alarms or error codes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eUnit shuts down unexpectedly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eSensors or other components do not communicate properly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eAbout Thermo King\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThermo King\u003c\/strong\u003e is a global leader in transport temperature control systems, specializing in refrigeration units for trucks, trailers, buses, rail cars, and shipping containers. Founded in 1938, the brand is renowned for reliable, efficient, and innovative solutions that keep perishable goods at precise temperatures during transport, supporting industries like food, pharmaceuticals, and logistics worldwide.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Thermo King","offers":[{"title":"Default Title","offer_id":51947720966391,"sku":"45-2731","price":2929.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/7080\/3959\/files\/D_NQ_NP_2X_655029-MLB49073497908_022022-F.webp?v=1793678005","url":"https:\/\/forcetruckparts.com\/products\/45-2731-genuine-thermo-king%c2%ae-sr4-precedent-motherboard-controller","provider":"Force Truck Parts","version":"1.0","type":"link"}