{"product_id":"dometic-atwood-30621-ignition-control-circuit-board-dsi-ac-afla-dfla","title":"Dometic \/ Atwood 30621 Ignition Control Circuit Board – DSI (AC) - AFLA, DFLA","description":"\u003ch2 data-start=\"176\" data-end=\"245\"\u003eDometic \/ Atwood 30621 Ignition Control Circuit Board – DSI (AC)\u003c\/h2\u003e\n\u003cp data-start=\"246\" data-end=\"273\"\u003e\u003cstrong data-start=\"246\" data-end=\"273\"\u003eGenuine OEM Replacement\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"275\" data-end=\"427\"\u003e\u003cstrong data-start=\"275\" data-end=\"291\"\u003ePart Number:\u003c\/strong\u003e 30621\u003cbr data-start=\"297\" data-end=\"300\"\u003e\u003cstrong data-start=\"300\" data-end=\"317\"\u003eProduct Type:\u003c\/strong\u003e Ignition Control Circuit Board (DSI Board)\u003cbr data-start=\"360\" data-end=\"363\"\u003e\u003cstrong data-start=\"363\" data-end=\"375\"\u003eVoltage:\u003c\/strong\u003e AC\u003cbr data-start=\"378\" data-end=\"381\"\u003e\u003cstrong data-start=\"381\" data-end=\"399\"\u003eIgnition Type:\u003c\/strong\u003e Direct Spark Ignition (DSI)\u003c\/p\u003e\n\u003chr data-start=\"429\" data-end=\"432\"\u003e\n\u003ch2 data-start=\"434\" data-end=\"453\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-start=\"455\" data-end=\"669\"\u003eThe \u003cstrong data-start=\"459\" data-end=\"516\"\u003eDometic \/ Atwood 30621 Ignition Control Circuit Board\u003c\/strong\u003e is a genuine OEM \u003cstrong data-start=\"534\" data-end=\"579\"\u003eDirect Spark Ignition (DSI) control board\u003c\/strong\u003e designed for select Atwood and Dometic medium-model furnaces operating on \u003cstrong data-start=\"654\" data-end=\"668\"\u003eAC systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"671\" data-end=\"940\"\u003eThis circuit board manages the full ignition sequence — initiating spark, controlling the gas valve, verifying flame presence, and protecting against unsafe conditions. When a board fails, the furnace may not ignite, may lock out repeatedly, or may spark without flame.\u003c\/p\u003e\n\u003cp data-start=\"942\" data-end=\"1052\"\u003eReplacing it with OEM Part 30621 restores proper ignition timing, flame sensing, and safe heating performance.\u003c\/p\u003e\n\u003cp data-start=\"1054\" data-end=\"1206\"\u003eManufactured to original equipment specifications, this board ensures correct compatibility and dependable operation across listed AFLA and DFLA models.\u003c\/p\u003e\n\u003chr data-start=\"1208\" data-end=\"1211\"\u003e\n\u003ch2 data-start=\"1213\" data-end=\"1228\"\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-start=\"1232\" data-end=\"1279\"\u003eGenuine OEM Dometic \/ Atwood replacement part\u003c\/li\u003e\n\u003cli data-start=\"1282\" data-end=\"1325\"\u003eDirect Spark Ignition (DSI) control board\u003c\/li\u003e\n\u003cli data-start=\"1328\" data-end=\"1361\"\u003eDesigned for AC system furnaces\u003c\/li\u003e\n\u003cli data-start=\"1364\" data-end=\"1415\"\u003eControls ignition sequence and flame verification\u003c\/li\u003e\n\u003cli data-start=\"1418\" data-end=\"1449\"\u003eRegulates gas valve operation\u003c\/li\u003e\n\u003cli data-start=\"1452\" data-end=\"1502\"\u003eDirect replacement for listed AFLA \u0026amp; DFLA models\u003c\/li\u003e\n\u003cli data-start=\"1505\" data-end=\"1544\"\u003eBuilt to original equipment standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1546\" data-end=\"1549\"\u003e\n\u003ch1 data-start=\"1551\" data-end=\"1578\"\u003eCompatible Furnace Models\u003c\/h1\u003e\n\u003chr data-start=\"1580\" data-end=\"1583\"\u003e\n\u003ch2 data-start=\"1585\" data-end=\"1611\"\u003eAtwood Furnace Models\u003c\/h2\u003e\n\u003cp data-start=\"1613\" data-end=\"1648\"\u003eAFLA35211\u003cbr data-start=\"1622\" data-end=\"1625\"\u003eAFLA35221\u003cbr data-start=\"1634\" data-end=\"1637\"\u003eAFLA35231\u003c\/p\u003e\n\u003cp data-start=\"1650\" data-end=\"1685\"\u003eAFLA40211\u003cbr data-start=\"1659\" data-end=\"1662\"\u003eAFLA40221\u003cbr data-start=\"1671\" data-end=\"1674\"\u003eAFLA40231\u003c\/p\u003e\n\u003chr data-start=\"1687\" data-end=\"1690\"\u003e\n\u003ch2 data-start=\"1692\" data-end=\"1719\"\u003eDometic Furnace Models\u003c\/h2\u003e\n\u003cp data-start=\"1721\" data-end=\"1756\"\u003eDFLA35211\u003cbr data-start=\"1730\" data-end=\"1733\"\u003eDFLA35221\u003cbr data-start=\"1742\" data-end=\"1745\"\u003eDFLA35231\u003c\/p\u003e\n\u003cp data-start=\"1758\" data-end=\"1793\"\u003eDFLA40211\u003cbr data-start=\"1767\" data-end=\"1770\"\u003eDFLA40221\u003cbr data-start=\"1779\" data-end=\"1782\"\u003eDFLA40231\u003c\/p\u003e\n\u003chr data-start=\"1795\" data-end=\"1798\"\u003e\n\u003cblockquote data-start=\"1800\" data-end=\"1904\"\u003e\n\u003cp data-start=\"1802\" data-end=\"1904\"\u003eAlways verify your furnace model number and confirm it uses an AC DSI ignition system before ordering.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr data-start=\"1906\" data-end=\"1909\"\u003e\n\u003ch2 data-start=\"1911\" data-end=\"1955\"\u003eCommon Symptoms of a Failed Control Board\u003c\/h2\u003e\n\u003cp data-start=\"1957\" data-end=\"2011\"\u003eYou may need to replace the ignition control board if:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"2015\" data-end=\"2040\"\u003eFurnace will not ignite\u003c\/li\u003e\n\u003cli data-start=\"2043\" data-end=\"2068\"\u003eNo spark during startup\u003c\/li\u003e\n\u003cli data-start=\"2071\" data-end=\"2108\"\u003eBurner lights briefly and shuts off\u003c\/li\u003e\n\u003cli data-start=\"2111\" data-end=\"2144\"\u003eFurnace enters ignition lockout\u003c\/li\u003e\n\u003cli data-start=\"2147\" data-end=\"2179\"\u003eGas valve not receiving signal\u003c\/li\u003e\n\u003cli data-start=\"2182\" data-end=\"2214\"\u003eIntermittent heating operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2216\" data-end=\"2299\"\u003eThe control board is the primary control component for the furnace ignition system.\u003c\/p\u003e\n\u003chr data-start=\"2301\" data-end=\"2304\"\u003e\n\u003ch2 data-start=\"2306\" data-end=\"2331\"\u003eProduct Specifications\u003c\/h2\u003e\n\u003cp data-start=\"2333\" data-end=\"2570\"\u003eManufacturer: Dometic \/ Atwood\u003cbr data-start=\"2363\" data-end=\"2366\"\u003ePart Number: 30621\u003cbr data-start=\"2384\" data-end=\"2387\"\u003eComponent: Ignition Control Circuit Board\u003cbr data-start=\"2428\" data-end=\"2431\"\u003eIgnition Type: Direct Spark Ignition (DSI)\u003cbr data-start=\"2473\" data-end=\"2476\"\u003eVoltage: AC\u003cbr data-start=\"2487\" data-end=\"2490\"\u003eApplication: AFLA \u0026amp; DFLA Series Medium Furnaces\u003cbr data-start=\"2537\" data-end=\"2540\"\u003eIncludes: Circuit board only\u003c\/p\u003e\n\u003chr data-start=\"2572\" data-end=\"2575\"\u003e\n\u003ch2 data-start=\"2577\" data-end=\"2612\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"2614\" data-end=\"2779\"\u003e\u003cstrong data-start=\"2614\" data-end=\"2654\"\u003eQ: What does a DSI control board do?\u003c\/strong\u003e\u003cbr data-start=\"2654\" data-end=\"2657\"\u003eA: It generates ignition spark, controls gas valve operation, and verifies flame presence to ensure safe burner operation.\u003c\/p\u003e\n\u003cp data-start=\"2781\" data-end=\"2886\"\u003e\u003cstrong data-start=\"2781\" data-end=\"2824\"\u003eQ: Is this compatible with DC furnaces?\u003c\/strong\u003e\u003cbr data-start=\"2824\" data-end=\"2827\"\u003eA: No. This listing is specifically for AC system furnaces.\u003c\/p\u003e\n\u003cp data-start=\"2888\" data-end=\"2982\"\u003e\u003cstrong data-start=\"2888\" data-end=\"2930\"\u003eQ: Which furnace models does this fit?\u003c\/strong\u003e\u003cbr data-start=\"2930\" data-end=\"2933\"\u003eA: It fits the AFLA and DFLA models listed above.\u003c\/p\u003e\n\u003cp data-start=\"2984\" data-end=\"3076\"\u003e\u003cstrong data-start=\"2984\" data-end=\"3011\"\u003eQ: Is this an OEM part?\u003c\/strong\u003e\u003cbr data-start=\"3011\" data-end=\"3014\"\u003eA: Yes. 30621 is a genuine Dometic \/ Atwood replacement board.\u003c\/p\u003e","brand":"RV Furnace Guys","offers":[{"title":"Default Title","offer_id":47857398087921,"sku":null,"price":298.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4941\/0289\/files\/30621.jpg?v=1772379624","url":"https:\/\/rvfurnaceguys.com\/products\/dometic-atwood-30621-ignition-control-circuit-board-dsi-ac-afla-dfla","provider":"RV Furnace Guys","version":"1.0","type":"link"}