{"product_id":"whirlpool-dishwasher-high-limit-thermostat-wp661566","title":"Whirlpool KitchenAid Dishwasher High Limit Thermostat WP661566 – Genuine OEM","description":"\u003cstyle\u003e\n.hero-banner{position:relative;background:linear-gradient(135deg,rgba(0,0,0,0.82) 60%,rgba(0,0,0,0.45) 100%),url('https:\/\/cdn.shopify.com\/s\/files\/1\/0897\/7783\/2225\/files\/4444444444444444.png?v=1777040489') center\/cover no-repeat;padding:36px 32px;border-radius:8px;margin:0 0 28px 0;color:#fff;}\n.hero-banner h2{margin:0 0 6px 0;font-size:1.55em;font-weight:900;letter-spacing:0.3px;}\n.hero-banner .label{display:inline-block;background:#c8a400;color:#000;font-size:0.72em;font-weight:800;text-transform:uppercase;letter-spacing:1px;padding:3px 10px;border-radius:3px;margin-bottom:12px;}\n.hero-specs{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}\n.hero-specs span{background:rgba(255,255,255,0.13);border:1px solid rgba(255,255,255,0.25);border-radius:4px;padding:5px 13px;font-size:0.82em;font-weight:700;letter-spacing:0.3px;}\n.pro-tip{background:#1a1a2e;border-left:4px solid #c8a400;padding:16px 20px;border-radius:6px;margin:24px 0;color:#f0f0f0;font-size:0.95em;line-height:1.6;}\n.pro-tip strong{color:#c8a400;}\n.upsell-box{background:#ffecd1;border-left:4px solid #ff9800;padding:14px 18px;margin:20px 0;border-radius:6px;}\n\u003c\/style\u003e\n\n\u003c!-- HERO BANNER --\u003e\n\u003cdiv class=\"hero-banner\"\u003e\n  \u003cdiv class=\"label\"\u003eGenuine OEM Replacement Part\u003c\/div\u003e\n  \u003ch2\u003eWhirlpool KitchenAid Dishwasher High Limit Thermostat WP661566 – Genuine OEM\u003c\/h2\u003e\n  \u003cdiv class=\"hero-specs\"\u003e\n    \u003cspan\u003ePart# WP661566\u003c\/span\u003e\n    \u003cspan\u003eReplaces 661566\u003c\/span\u003e\n    \u003cspan\u003eFits Whirlpool\u003c\/span\u003e\n    \u003cspan\u003eFits KitchenAid\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c!-- H1 --\u003e\n\u003ch1\u003eDishwasher Overheating or Not Drying? Fix High Limit Thermostat WP661566 Fast\u003c\/h1\u003e\n\n\u003c!-- INTRO --\u003e\n\u003cp\u003e\u003cstrong\u003eA dishwasher that trips its thermal fuse, won’t complete the dry cycle, or shuts off mid-cycle due to overheating has a failed high limit thermostat.\u003c\/strong\u003e In most Whirlpool, KitchenAid, and Maytag dishwashers, the high limit thermostat is the safety device that monitors water and air temperature inside the tub — when it fails open, the heating element never activates and dishes come out wet; when it fails closed or trips, the machine shuts down to prevent damage. \u003cstrong\u003e⚡ Common failure point in Whirlpool-built dishwashers with heated dry cycles.\u003c\/strong\u003e \u003cstrong\u003ePart WP661566\u003c\/strong\u003e is the genuine OEM replacement (supersedes 661566, W10339474, WP661566VP) that restores proper temperature control and drying performance immediately.\u003c\/p\u003e\n\n\u003c!-- IS THIS THE RIGHT PART? --\u003e\n\u003ch3\u003e❓ Is This the Right Part?\u003c\/h3\u003e\n\u003cp\u003eThis is the correct fix if ALL of the following are true:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e✔ Your dishwasher powers on and completes wash and rinse cycles\u003c\/li\u003e\n  \u003cli\u003e✔ The heating element has been tested and confirmed functional (not open\/burned out)\u003c\/li\u003e\n  \u003cli\u003e✔ The control board and timer are confirmed operational\u003c\/li\u003e\n  \u003cli\u003e✔ Water supply and drain are working correctly\u003c\/li\u003e\n  \u003cli\u003e✔ ONLY problem is dishes not drying, cycle shutting off early, or thermal fuse blowing repeatedly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNot sure? \u003ca href=\"\/pages\/contact\"\u003eSend us your model number\u003c\/a\u003e — we’ll confirm before you order.\u003c\/p\u003e\n\n\u003c!-- COMMON SYMPTOMS --\u003e\n\u003ch3\u003e🔧 Common Symptoms\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDishes come out wet — heated dry cycle not activating\u003c\/li\u003e\n  \u003cli\u003eDishwasher shuts off mid-cycle with no error code\u003c\/li\u003e\n  \u003cli\u003eThermal fuse blows repeatedly after replacement\u003c\/li\u003e\n  \u003cli\u003eDishwasher runs but tub never gets warm during dry phase\u003c\/li\u003e\n  \u003cli\u003eCycle completes but heating element never turns on\u003c\/li\u003e\n  \u003cli\u003eDishwasher trips breaker or shuts down during high-heat rinse\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e✔ If these symptoms match, the high limit thermostat is the most likely failed component in the system.\u003c\/p\u003e\n\u003cp\u003e✔ In most cases, replacing this thermostat restores normal drying performance immediately.\u003c\/p\u003e\n\n\u003c!-- PART DETAILS --\u003e\n\u003ch3\u003e📦 Part Details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e WP661566\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Dishwasher High Limit Thermostat (Thermal Safety Switch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplaces:\u003c\/strong\u003e OEM direct-fit thermostat — supersedes 661566, W10339474, WP661566VP (no modification required)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrands:\u003c\/strong\u003e Whirlpool, KitchenAid, Maytag, Kenmore\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- UPSELL BOX --\u003e\n\u003cdiv class=\"upsell-box\"\u003e\n  \u003cstrong\u003e⚠️ Recommended While Repairing:\u003c\/strong\u003e\u003cbr\u003e\n  If the high limit thermostat has tripped or failed, inspect the heating element for continuity before reassembling — a shorted or partially failed element causes the thermostat to trip repeatedly and will destroy the new part. Replace both together if the element shows any resistance anomaly.\n\u003c\/div\u003e\n\n\u003c!-- INSTALLATION --\u003e\n\u003ch3\u003e⚙️ Installation\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSkill Level: EASY — 15–20 minutes.\u003c\/strong\u003e Disconnect power before beginning. The high limit thermostat is typically located on the outer tub near the heating element — remove the lower access panel or inner door panel depending on your model, disconnect the two wire terminals, and swap the thermostat. Reconnect terminals securely and restore power — run a heated dry cycle to confirm normal operation.\u003c\/p\u003e\n\n\u003c!-- COMPATIBLE MODELS --\u003e\n\u003ch3\u003e✓ Compatible Models\u003c\/h3\u003e\n\u003cp\u003eConfirmed compatible with hundreds of Whirlpool, KitchenAid, Maytag, and Kenmore dishwasher models across multiple decades of production. \u003ca href=\"\/pages\/contact\"\u003eContact us to verify your model number\u003c\/a\u003e before ordering.\u003c\/p\u003e\n\n\u003c!-- PRO TIP --\u003e\n\u003ch3\u003e💡 Pro Tip\u003c\/h3\u003e\n\u003cdiv class=\"pro-tip\"\u003e\n  \u003cstrong\u003e💡 Pro Tip — Test the Thermostat Before Replacing:\u003c\/strong\u003e\u003cbr\u003e\n  Use a multimeter set to continuity or resistance mode — a good high limit thermostat should show continuity (near-zero resistance) at room temperature. If it reads open (infinite resistance) at room temperature, it has tripped or failed and WP661566 is your fix. If it reads correctly but dishes still won’t dry, test the heating element next — a failed element is the other half of this diagnosis.\n\u003c\/div\u003e\n\n\u003c!-- BIDIR HUB LINKS --\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/7du1100xtsq0\"\u003e7DU1100XTSQ0\u003c\/a\u003e, \u003ca href=\"\/pages\/du1100xtpq0\"\u003eDU1100XTPQ0\u003c\/a\u003e, \u003ca href=\"\/pages\/du1100xtpq3\"\u003eDU1100XTPQ3\u003c\/a\u003e, \u003ca href=\"\/pages\/du1145xtpq0\"\u003eDU1145XTPQ0\u003c\/a\u003e, \u003ca href=\"\/pages\/du1148xtpq0\"\u003eDU1148XTPQ0\u003c\/a\u003e, \u003ca href=\"\/pages\/du1055xtss0\"\u003eDU1055XTSS0\u003c\/a\u003e, \u003ca href=\"\/pages\/du1055xtss3\"\u003eDU1055XTSS3\u003c\/a\u003e, \u003ca href=\"\/pages\/du1065xtpq0\"\u003eDU1065XTPQ0\u003c\/a\u003e, \u003ca href=\"\/pages\/du1065xtpq3\"\u003eDU1065XTPQ3\u003c\/a\u003e, \u003ca href=\"\/pages\/du1300xtvq0\"\u003eDU1300XTVQ0\u003c\/a\u003e\u003c\/p\u003e","brand":"Whirlpool","offers":[{"title":"OEM","offer_id":51303687586081,"sku":"WP661566","price":39.5,"currency_code":"CAD","in_stock":true},{"title":"Used","offer_id":51303687618849,"sku":"WP661566","price":19.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0897\/7783\/2225\/files\/Whirlpool_KitchenAid_Dishwasher_High_Limit_Thermostat_WP661566_Genuine_OEM.png?v=1782281347","url":"https:\/\/xpartsupply.com\/products\/whirlpool-dishwasher-high-limit-thermostat-wp661566","provider":"XPart Supply Ltd.","version":"1.0","type":"link"}