{"product_id":"nibe-pcba-splicing-board-519577","title":"Nibe PCBA Splicing board - 519577","description":"\u003cdiv data-testid=\"backstage-chats\"\u003e\n\u003cdiv data-tabster='{\"groupper\":{\"tabbability\":2},\"focusable\":{}}' data-content=\"ai-message\" data-testid=\"ai-message\" aria-labelledby=\"p6MUoVR2T1MohiRgzxcNE-author p6MUoVR2T1MohiRgzxcNE-content-0\" role=\"article\" tabindex=\"0\"\u003e\n\u003cdiv\u003e\n\u003cdiv id=\"p6MUoVR2T1MohiRgzxcNE-content-0\"\u003e\n\u003cp\u003eThe \u003cstrong\u003ePCBA SPLICE CARD F7X0\u003c\/strong\u003e with \u003cstrong\u003epart number 519577\u003c\/strong\u003e is a NIBE replacement circuit board used in several NIBE F730 and F750 heat pump models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible NIBE models\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis board fits many F730 and F750 variants, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNIBE \u003cstrong\u003eF730 CU 3×400V\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNIBE \u003cstrong\u003eF730 E EM 3×400V\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNIBE \u003cstrong\u003eF730 R 1×230V\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNIBE \u003cstrong\u003eF730 R 1×230V UK\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNIBE \u003cstrong\u003eF750 CU 3×400V\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNIBE \u003cstrong\u003eF750 E EM 3×400V\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNIBE \u003cstrong\u003eF750 R EM 3×230 \/ 3×400\u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"min-h-[calc(100%-56px)] flex shrink-0 flex-col\" data-testid=\"highlighted-chats\"\u003e\n\u003cdiv data-tabster='{\"groupper\":{\"tabbability\":2},\"focusable\":{}}' id=\"hco5tsL3r4DLbsHB1VSqt-user-message\" aria-labelledby=\"hco5tsL3r4DLbsHB1VSqt-user-message\" role=\"article\" tabindex=\"0\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1\"\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-tabster='{\"groupper\":{\"tabbability\":2},\"focusable\":{}}' data-content=\"ai-message\" data-testid=\"ai-message\" aria-labelledby=\"YBcC78CBf4o3BHCZbFwtz-author YBcC78CBf4o3BHCZbFwtz-content-0\" role=\"article\" tabindex=\"0\"\u003e\n\u003cdiv class=\"space-y-3 mt-3\"\u003e\n\u003cdiv id=\"YBcC78CBf4o3BHCZbFwtz-content-0\"\u003e\n\u003cp\u003e\u003cstrong\u003eThe board functions \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTemperature sensors (supply, exhaust, brine, DHW tank)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFan control signals\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCompressor control interconnects\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSafety interlocks\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eExternal relay interfaces\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCommunication buses (internal CAN‑like NIBE bus)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePower‑limited auxiliary circuits\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eIt does \u003cstrong\u003enot\u003c\/strong\u003e contain the main CPU or firmware — it is a \u003cstrong\u003epassive\/semiactive interface board\u003c\/strong\u003e, not the main controller.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eTypical Failure Symptoms\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eIf your splice card is failing, you may see:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIntermittent or permanent \u003cstrong\u003esensor error codes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIncorrect temperature readings\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDHW tank not heating due to false sensor values\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eFan or actuator issues\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFan speed stuck at one level\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFan not responding to control changes\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDamper\/valve not actuating\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eCommunication errors\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e“Internal communication error” messages\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRandom resets or loss of connection to accessories\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003ePower‑related anomalies\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLow‑voltage supply instability\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBoard warm to the touch (should normally run cool)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003ePhysical signs\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBurn marks near connectors\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCorroded pins (common in humid installations)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBroken solder joints on high‑stress connectors\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Nibe","offers":[{"title":"Default Title","offer_id":55535812510072,"sku":"vn172","price":89.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0496\/7984\/files\/SAM_0238.jpg?v=1776715322","url":"https:\/\/varme-tec.com\/products\/nibe-pcba-splicing-board-519577","provider":"Varmetec Limited","version":"1.0","type":"link"}