{"product_id":"main-control-board-for-mrcool-prodirect-1-5-ton-central-air-handler-replacement-pcb","title":"Main Control Board for MRCOOL ProDirect 1.5 Ton Central Air Handler – Replacement PCB","description":"\u003cp data-start=\"382\" data-end=\"595\"\u003eRestore your MRCOOL ProDirect system to peak performance with this \u003cstrong data-start=\"449\" data-end=\"487\"\u003eOEM Replacement Main Control Board\u003c\/strong\u003e, designed specifically for the \u003cstrong data-start=\"519\" data-end=\"592\"\u003eMRCOOL Pro Direct Series 1.5 Ton Central Air Handler (Model HAH15018)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"597\" data-end=\"942\"\u003eThis high-quality printed circuit board (PCB) manages the critical operations of your air handler, including fan control, communication functions, system safety features, and overall unit coordination. If your system is experiencing irregular operation, failure to power on, or inconsistent airflow, a malfunctioning main board may be the cause.\u003c\/p\u003e\n\u003ch3 data-start=\"944\" data-end=\"964\"\u003e\u003cstrong data-start=\"948\" data-end=\"964\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"965\" data-end=\"1479\"\u003e\n\u003cli data-start=\"965\" data-end=\"1068\"\u003e\n\u003cp data-start=\"967\" data-end=\"1068\"\u003e\u003cstrong data-start=\"967\" data-end=\"991\"\u003eOEM Replacement Part\u003c\/strong\u003e – Built to match original MRCOOL specifications for seamless installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1069\" data-end=\"1176\"\u003e\n\u003cp data-start=\"1071\" data-end=\"1093\"\u003e\u003cstrong data-start=\"1071\" data-end=\"1091\"\u003eCompatible With:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1096\" data-end=\"1176\"\u003e\n\u003cli data-start=\"1096\" data-end=\"1150\"\u003e\n\u003cp data-start=\"1098\" data-end=\"1150\"\u003e\u003cstrong data-start=\"1098\" data-end=\"1148\"\u003eMRCOOL Pro Direct Series Air Handler – 1.5 Ton\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1153\" data-end=\"1176\"\u003e\n\u003cp data-start=\"1155\" data-end=\"1176\"\u003e\u003cstrong data-start=\"1155\" data-end=\"1174\"\u003eModel: HAH15018\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1177\" data-end=\"1296\"\u003e\n\u003cp data-start=\"1179\" data-end=\"1296\"\u003e\u003cstrong data-start=\"1179\" data-end=\"1212\"\u003eRestores Full System Function\u003c\/strong\u003e – Re-establishes proper system communication, fan operation, and safety controls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1297\" data-end=\"1388\"\u003e\n\u003cp data-start=\"1299\" data-end=\"1388\"\u003e\u003cstrong data-start=\"1299\" data-end=\"1323\"\u003eDurable Construction\u003c\/strong\u003e – Engineered for long-term reliability and stable performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1389\" data-end=\"1479\"\u003e\n\u003cp data-start=\"1391\" data-end=\"1479\"\u003e\u003cstrong data-start=\"1391\" data-end=\"1411\"\u003eEasy Replacement\u003c\/strong\u003e – Designed to fit directly in place of the factory-installed board.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1481\" data-end=\"1519\"\u003e\u003cstrong data-start=\"1485\" data-end=\"1519\"\u003eWhen to Replace the Main Board\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1520\" data-end=\"1709\"\u003e\n\u003cli data-start=\"1520\" data-end=\"1547\"\u003e\n\u003cp data-start=\"1522\" data-end=\"1547\"\u003eSystem will not turn on\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1548\" data-end=\"1582\"\u003e\n\u003cp data-start=\"1550\" data-end=\"1582\"\u003eAir handler fan not responding\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1583\" data-end=\"1631\"\u003e\n\u003cp data-start=\"1585\" data-end=\"1631\"\u003eFault codes related to communication failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1632\" data-end=\"1668\"\u003e\n\u003cp data-start=\"1634\" data-end=\"1668\"\u003eUnresponsive thermostat commands\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1669\" data-end=\"1709\"\u003e\n\u003cp data-start=\"1671\" data-end=\"1709\"\u003eRandom cycling or system instability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1711\" data-end=\"1913\"\u003eMaintaining the correct control board is essential to the proper function of your MRCOOL ProDirect system. This replacement board ensures your air handler continues operating efficiently and dependably.\u003c\/p\u003e\n\u003cp data-start=\"1711\" data-end=\"1913\"\u003e\u003cem\u003e\u003cstrong\u003eStock image may be shown—actual part may differ. Model-specific replacement part.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"MRCOOL DIY Direct","offers":[{"title":"Default Title","offer_id":49176856232163,"sku":"801343000003","price":193.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/8752\/3043\/files\/mrcool-prodirect-1-5-ton-air-handler-main-control-board-hah15018.jpg?v=1780844472","url":"https:\/\/freedomhvacsupply.com\/products\/main-control-board-for-mrcool-prodirect-1-5-ton-central-air-handler-replacement-pcb","provider":"Freedom HVAC Supply","version":"1.0","type":"link"}