{"product_id":"dometic-atwood-31091-furnace-limit-switch","title":"Dometic \/ Atwood 31091 Furnace Limit Switch","description":"\u003ch2 data-start=\"211\" data-end=\"259\"\u003eDometic \/ Atwood 31091 Furnace Limit Switch\u003c\/h2\u003e\n\u003cp data-start=\"260\" data-end=\"287\"\u003e\u003cstrong data-start=\"260\" data-end=\"287\"\u003eGenuine OEM Replacement\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"289\" data-end=\"402\"\u003e\u003cstrong data-start=\"289\" data-end=\"305\"\u003ePart Number:\u003c\/strong\u003e 31091\u003cbr data-start=\"311\" data-end=\"314\"\u003e\u003cstrong data-start=\"314\" data-end=\"331\"\u003eProduct Type:\u003c\/strong\u003e Furnace Limit Switch\u003cbr data-start=\"352\" data-end=\"355\"\u003e\u003cstrong data-start=\"355\" data-end=\"371\"\u003eApplication:\u003c\/strong\u003e Atwood \u0026amp; Dometic RV Furnaces\u003c\/p\u003e\n\u003chr data-start=\"404\" data-end=\"407\"\u003e\n\u003ch3 data-start=\"409\" data-end=\"429\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp data-start=\"431\" data-end=\"718\"\u003eThe \u003cstrong data-start=\"435\" data-end=\"482\"\u003eDometic \/ Atwood 31091 Furnace Limit Switch\u003c\/strong\u003e is a genuine OEM safety component designed to protect your RV furnace from overheating. The limit switch monitors internal furnace temperature and automatically shuts off the burner circuit if temperatures exceed safe operating limits.\u003c\/p\u003e\n\u003cp data-start=\"720\" data-end=\"955\"\u003eIf your furnace is cycling improperly, shutting down unexpectedly, or failing to stay lit, a faulty limit switch may be the cause. Replacing it with OEM Part 31091 restores safe operation and prevents potential heat damage to the unit.\u003c\/p\u003e\n\u003cp data-start=\"957\" data-end=\"1153\"\u003eManufactured to original equipment specifications, this high-limit switch ensures accurate temperature response and dependable performance across a wide range of Atwood and Dometic furnace models.\u003c\/p\u003e\n\u003chr data-start=\"1155\" data-end=\"1158\"\u003e\n\u003ch3 data-start=\"1160\" data-end=\"1176\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1180\" data-end=\"1227\"\u003eGenuine OEM Dometic \/ Atwood replacement part\u003c\/li\u003e\n\u003cli data-start=\"1230\" data-end=\"1256\"\u003eHigh-limit safety switch\u003c\/li\u003e\n\u003cli data-start=\"1259\" data-end=\"1289\"\u003eProtects against overheating\u003c\/li\u003e\n\u003cli data-start=\"1292\" data-end=\"1356\"\u003eAutomatically interrupts burner circuit at unsafe temperatures\u003c\/li\u003e\n\u003cli data-start=\"1359\" data-end=\"1401\"\u003eDirect OEM replacement for listed models\u003c\/li\u003e\n\u003cli data-start=\"1404\" data-end=\"1443\"\u003eBuilt to original equipment standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1445\" data-end=\"1448\"\u003e\n\u003ch2 data-start=\"1450\" data-end=\"1478\"\u003eCompatible Furnace Models\u003c\/h2\u003e\n\u003cp data-start=\"1480\" data-end=\"1543\"\u003ePart \u003cstrong data-start=\"1485\" data-end=\"1494\"\u003e31091\u003c\/strong\u003e is compatible with the following furnace series:\u003c\/p\u003e\n\u003chr data-start=\"1545\" data-end=\"1548\"\u003e\n\u003ch3 data-start=\"1550\" data-end=\"1565\"\u003eAFLA Series\u003c\/h3\u003e\n\u003cp data-start=\"1566\" data-end=\"1637\"\u003eAFLA35211\u003cbr data-start=\"1575\" data-end=\"1578\"\u003eAFLA35221\u003cbr data-start=\"1587\" data-end=\"1590\"\u003eAFLA35231\u003cbr data-start=\"1599\" data-end=\"1602\"\u003eAFLA40211\u003cbr data-start=\"1611\" data-end=\"1614\"\u003eAFLA40221\u003cbr data-start=\"1623\" data-end=\"1626\"\u003eAFLA40231\u003c\/p\u003e\n\u003chr data-start=\"1639\" data-end=\"1642\"\u003e\n\u003ch3 data-start=\"1644\" data-end=\"1659\"\u003eAFLD Series\u003c\/h3\u003e\n\u003cp data-start=\"1660\" data-end=\"1731\"\u003eAFLD35111\u003cbr data-start=\"1669\" data-end=\"1672\"\u003eAFLD35121\u003cbr data-start=\"1681\" data-end=\"1684\"\u003eAFLD35131\u003cbr data-start=\"1693\" data-end=\"1696\"\u003eAFLD40111\u003cbr data-start=\"1705\" data-end=\"1708\"\u003eAFLD40121\u003cbr data-start=\"1717\" data-end=\"1720\"\u003eAFLD40131\u003c\/p\u003e\n\u003chr data-start=\"1733\" data-end=\"1736\"\u003e\n\u003ch3 data-start=\"1738\" data-end=\"1753\"\u003eAFMD Series\u003c\/h3\u003e\n\u003cp data-start=\"1754\" data-end=\"2033\"\u003eAFMD16111, AFMD16121, AFMD16131, AFMD16141, AFMD16151\u003cbr data-start=\"1807\" data-end=\"1810\"\u003eAFMD20111, AFMD20121, AFMD20131, AFMD20141, AFMD20151\u003cbr data-start=\"1863\" data-end=\"1866\"\u003eAFMD25111, AFMD25121, AFMD25131, AFMD25141, AFMD25151\u003cbr data-start=\"1919\" data-end=\"1922\"\u003eAFMD30111, AFMD30121, AFMD30131, AFMD30141, AFMD30151\u003cbr data-start=\"1975\" data-end=\"1978\"\u003eAFMD35111, AFMD35121, AFMD35131, AFMD35141, AFMD35151\u003c\/p\u003e\n\u003chr data-start=\"2035\" data-end=\"2038\"\u003e\n\u003ch3 data-start=\"2040\" data-end=\"2056\"\u003eAFSAD Series\u003c\/h3\u003e\n\u003cp data-start=\"2057\" data-end=\"2108\"\u003eAFSAD12111\u003cbr data-start=\"2067\" data-end=\"2070\"\u003eAFSAD12121\u003cbr data-start=\"2080\" data-end=\"2083\"\u003eAFSAD12131\u003cbr data-start=\"2093\" data-end=\"2096\"\u003eAFSAD12141\u003c\/p\u003e\n\u003chr data-start=\"2110\" data-end=\"2113\"\u003e\n\u003ch3 data-start=\"2115\" data-end=\"2130\"\u003eAFSD Series\u003c\/h3\u003e\n\u003cp data-start=\"2131\" data-end=\"2265\"\u003eAFSD12111, AFSD12121, AFSD12131, AFSD12141\u003cbr data-start=\"2173\" data-end=\"2176\"\u003eAFSD16111, AFSD16121, AFSD16131, AFSD16141\u003cbr data-start=\"2218\" data-end=\"2221\"\u003eAFSD20111, AFSD20121, AFSD20131, AFSD20141\u003c\/p\u003e\n\u003chr data-start=\"2267\" data-end=\"2270\"\u003e\n\u003ch3 data-start=\"2272\" data-end=\"2288\"\u003eAFSDA Series\u003c\/h3\u003e\n\u003cp data-start=\"2289\" data-end=\"2301\"\u003eAFSDA12121\u003c\/p\u003e\n\u003chr data-start=\"2303\" data-end=\"2306\"\u003e\n\u003ch3 data-start=\"2308\" data-end=\"2323\"\u003eDFLA Series\u003c\/h3\u003e\n\u003cp data-start=\"2324\" data-end=\"2395\"\u003eDFLA35211\u003cbr data-start=\"2333\" data-end=\"2336\"\u003eDFLA35221\u003cbr data-start=\"2345\" data-end=\"2348\"\u003eDFLA35231\u003cbr data-start=\"2357\" data-end=\"2360\"\u003eDFLA40211\u003cbr data-start=\"2369\" data-end=\"2372\"\u003eDFLA40221\u003cbr data-start=\"2381\" data-end=\"2384\"\u003eDFLA40231\u003c\/p\u003e\n\u003chr data-start=\"2397\" data-end=\"2400\"\u003e\n\u003ch3 data-start=\"2402\" data-end=\"2417\"\u003eDFLD Series\u003c\/h3\u003e\n\u003cp data-start=\"2418\" data-end=\"2489\"\u003eDFLD35111\u003cbr data-start=\"2427\" data-end=\"2430\"\u003eDFLD35121\u003cbr data-start=\"2439\" data-end=\"2442\"\u003eDFLD35131\u003cbr data-start=\"2451\" data-end=\"2454\"\u003eDFLD40111\u003cbr data-start=\"2463\" data-end=\"2466\"\u003eDFLD40121\u003cbr data-start=\"2475\" data-end=\"2478\"\u003eDFLD40131\u003c\/p\u003e\n\u003chr data-start=\"2491\" data-end=\"2494\"\u003e\n\u003ch3 data-start=\"2496\" data-end=\"2511\"\u003eDFMD Series\u003c\/h3\u003e\n\u003cp data-start=\"2512\" data-end=\"2791\"\u003eDFMD16111, DFMD16121, DFMD16131, DFMD16141, DFMD16151\u003cbr data-start=\"2565\" data-end=\"2568\"\u003eDFMD20111, DFMD20121, DFMD20131, DFMD20141, DFMD20151\u003cbr data-start=\"2621\" data-end=\"2624\"\u003eDFMD25111, DFMD25121, DFMD25131, DFMD25141, DFMD25151\u003cbr data-start=\"2677\" data-end=\"2680\"\u003eDFMD30111, DFMD30121, DFMD30131, DFMD30141, DFMD30151\u003cbr data-start=\"2733\" data-end=\"2736\"\u003eDFMD35111, DFMD35121, DFMD35131, DFMD35141, DFMD35151\u003c\/p\u003e\n\u003chr data-start=\"2793\" data-end=\"2796\"\u003e\n\u003ch3 data-start=\"2798\" data-end=\"2814\"\u003eDFMDH Series\u003c\/h3\u003e\n\u003cp data-start=\"2815\" data-end=\"2892\"\u003eDFMDH25111\u003cbr data-start=\"2825\" data-end=\"2828\"\u003eDFMDH25121\u003cbr data-start=\"2838\" data-end=\"2841\"\u003eDFMDH30111\u003cbr data-start=\"2851\" data-end=\"2854\"\u003eDFMDH30121\u003cbr data-start=\"2864\" data-end=\"2867\"\u003eDFMDH35111\u003cbr data-start=\"2877\" data-end=\"2880\"\u003eDFMDH35121\u003c\/p\u003e\n\u003chr data-start=\"2894\" data-end=\"2897\"\u003e\n\u003ch3 data-start=\"2899\" data-end=\"2915\"\u003eDFSAD Series\u003c\/h3\u003e\n\u003cp data-start=\"2916\" data-end=\"2967\"\u003eDFSAD12111\u003cbr data-start=\"2926\" data-end=\"2929\"\u003eDFSAD12121\u003cbr data-start=\"2939\" data-end=\"2942\"\u003eDFSAD12131\u003cbr data-start=\"2952\" data-end=\"2955\"\u003eDFSAD12141\u003c\/p\u003e\n\u003chr data-start=\"2969\" data-end=\"2972\"\u003e\n\u003ch3 data-start=\"2974\" data-end=\"2989\"\u003eDFSD Series\u003c\/h3\u003e\n\u003cp data-start=\"2990\" data-end=\"3124\"\u003eDFSD12111, DFSD12121, DFSD12131, DFSD12141\u003cbr data-start=\"3032\" data-end=\"3035\"\u003eDFSD16111, DFSD16121, DFSD16131, DFSD16141\u003cbr data-start=\"3077\" data-end=\"3080\"\u003eDFSD20111, DFSD20121, DFSD20131, DFSD20141\u003c\/p\u003e\n\u003chr data-start=\"3126\" data-end=\"3129\"\u003e\n\u003ch3 data-start=\"3131\" data-end=\"3147\"\u003eDFSDH Series\u003c\/h3\u003e\n\u003cp data-start=\"3148\" data-end=\"3173\"\u003eDFSDH20111\u003cbr data-start=\"3158\" data-end=\"3161\"\u003eDFSDH20121\u003c\/p\u003e\n\u003chr data-start=\"3175\" data-end=\"3178\"\u003e\n\u003cblockquote data-start=\"3180\" data-end=\"3262\"\u003e\n\u003cp data-start=\"3182\" data-end=\"3262\"\u003eAlways verify your furnace model number before ordering to ensure compatibility.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr data-start=\"3264\" data-end=\"3267\"\u003e\n\u003ch2 data-start=\"3269\" data-end=\"3313\"\u003eWhen Should You Replace the Limit Switch?\u003c\/h2\u003e\n\u003cp data-start=\"3315\" data-end=\"3370\"\u003eYou may need to replace the limit switch if you notice:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"3374\" data-end=\"3420\"\u003eFurnace shutting down shortly after ignition\u003c\/li\u003e\n\u003cli data-start=\"3423\" data-end=\"3471\"\u003eFurnace blower running but no burner operation\u003c\/li\u003e\n\u003cli data-start=\"3474\" data-end=\"3498\"\u003eRepeated short cycling\u003c\/li\u003e\n\u003cli data-start=\"3501\" data-end=\"3555\"\u003eDiagnostic testing confirms failed high-limit switch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3557\" data-end=\"3661\"\u003eThe limit switch is a critical safety device and should be replaced with an OEM specification component.\u003c\/p\u003e\n\u003chr data-start=\"3663\" data-end=\"3666\"\u003e\n\u003ch3 data-start=\"3668\" data-end=\"3694\"\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"3698\" data-end=\"3734\"\u003e\n\u003cstrong data-start=\"3698\" data-end=\"3715\"\u003eManufacturer:\u003c\/strong\u003e Dometic \/ Atwood\u003c\/li\u003e\n\u003cli data-start=\"3737\" data-end=\"3761\"\u003e\n\u003cstrong data-start=\"3737\" data-end=\"3753\"\u003ePart Number:\u003c\/strong\u003e 31091\u003c\/li\u003e\n\u003cli data-start=\"3764\" data-end=\"3798\"\u003e\n\u003cstrong data-start=\"3764\" data-end=\"3778\"\u003eComponent:\u003c\/strong\u003e High-Limit Switch\u003c\/li\u003e\n\u003cli data-start=\"3801\" data-end=\"3836\"\u003e\n\u003cstrong data-start=\"3801\" data-end=\"3814\"\u003eFunction:\u003c\/strong\u003e Overheat protection\u003c\/li\u003e\n\u003cli data-start=\"3839\" data-end=\"3913\"\u003e\n\u003cstrong data-start=\"3839\" data-end=\"3855\"\u003eApplication:\u003c\/strong\u003e Compatible Atwood \u0026amp; Dometic furnace models listed above\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3915\" data-end=\"3918\"\u003e\n\u003ch2 data-start=\"3920\" data-end=\"3955\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003ch3 data-start=\"3957\" data-end=\"4002\"\u003eQ: What does a furnace limit switch do?\u003c\/h3\u003e\n\u003cp data-start=\"4003\" data-end=\"4118\"\u003eA: It protects the furnace from overheating by shutting off the burner if internal temperatures exceed safe limits.\u003c\/p\u003e\n\u003chr data-start=\"4120\" data-end=\"4123\"\u003e\n\u003ch3 data-start=\"4125\" data-end=\"4191\"\u003eQ: Will a bad limit switch cause the furnace to short cycle?\u003c\/h3\u003e\n\u003cp data-start=\"4192\" data-end=\"4293\"\u003eA: Yes. A faulty or weak limit switch can cause repeated cycling or shutdowns shortly after ignition.\u003c\/p\u003e\n\u003chr data-start=\"4295\" data-end=\"4298\"\u003e\n\u003ch3 data-start=\"4300\" data-end=\"4346\"\u003eQ: Is this an OEM Dometic \/ Atwood part?\u003c\/h3\u003e\n\u003cp data-start=\"4347\" data-end=\"4405\"\u003eA: Yes. Part 31091 is a genuine OEM replacement component.\u003c\/p\u003e\n\u003chr data-start=\"4407\" data-end=\"4410\"\u003e\n\u003ch3 data-start=\"4412\" data-end=\"4466\"\u003eQ: Does this fit both AF and DF series furnaces?\u003c\/h3\u003e\n\u003cp data-start=\"4467\" data-end=\"4567\"\u003eA: Yes. It fits compatible AFLA, AFMD, AFSD, DFMD, DFSD, DFLA, DFLD and related series listed above.\u003c\/p\u003e","brand":"RV Furnace Guys","offers":[{"title":"Default Title","offer_id":47854744338673,"sku":null,"price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4941\/0289\/files\/31091.png?v=1772312346","url":"https:\/\/rvfurnaceguys.com\/products\/dometic-atwood-31091-furnace-limit-switch","provider":"RV Furnace Guys","version":"1.0","type":"link"}