{"product_id":"wp12729127-heater","title":"WP12729127 Whirlpool Refrigerator Defrost Heater – Genuine OEM Replacement","description":"\u003cstyle\u003e\n.hero-banner{position:relative;overflow:hidden;background:linear-gradient(135deg,rgba(0,0,0,.86) 55%,rgba(0,0,0,.45)),url('https:\/\/cdn.shopify.com\/s\/files\/1\/0897\/7783\/2225\/files\/4444444444444444.png?v=1777040489') center\/cover no-repeat;padding:44px 34px;border-radius:12px;margin:0 0 28px;color:#fff;box-shadow:0 10px 30px rgba(0,0,0,.25);}\n.hero-banner:before{content:'';position:absolute;inset:0;background:radial-gradient(circle at center,rgba(0,153,255,.20),transparent 65%);animation:pulse 5s infinite;}\n.hero-banner\u003e*{position:relative;z-index:2;}\n.hero-banner h2{margin:0 0 8px;font-size:1.85em;font-weight:900;letter-spacing:.2px;line-height:1.1;}\n.label{display:inline-block;background:#c8a400;color:#000;font-size:.72em;font-weight:900;text-transform:uppercase;letter-spacing:1px;padding:5px 12px;border-radius:999px;margin-bottom:12px;}\n.hero-specs{display:flex;flex-wrap:wrap;gap:8px;margin-top:15px;}\n.hero-specs span{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:7px 13px;font-size:.82em;font-weight:800;}\n.pro-tip{position:relative;overflow:hidden;background:#1a1a2e;border-left:5px solid #c8a400;padding:16px 20px;border-radius:8px;margin:24px 0;color:#f0f0f0;font-size:.95em;line-height:1.6;}\n.pro-tip strong{color:#c8a400;}\n.upsell-box{background:#ffecd1;border-left:5px solid #ff9800;padding:14px 18px;margin:20px 0;border-radius:8px;}\n@keyframes pulse{50%{opacity:.85}}\n\u003c\/style\u003e\n\n\u003cdiv class=\"hero-banner\"\u003e\n  \u003cdiv class=\"label\"\u003eOEM REPLACEMENT PART\u003c\/div\u003e\n  \u003ch2\u003eWP12729127 Whirlpool Refrigerator Defrost Heater\u003c\/h2\u003e\n  \u003cdiv class=\"hero-specs\"\u003e\n    \u003cspan\u003ePart# WP12729127\u003c\/span\u003e\n    \u003cspan\u003eFits Whirlpool\u003c\/span\u003e\n    \u003cspan\u003eFits KitchenAid\u003c\/span\u003e\n    \u003cspan\u003eFits Kenmore\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch1\u003eRefrigerator Frosting Over or Not Cooling? Defrost Heater WP12729127 – Fix Frost Buildup Fast\u003c\/h1\u003e\n\n\u003cp\u003e\u003cstrong\u003eIf your Whirlpool refrigerator has excessive frost on the evaporator coils, warm temperatures in the fresh food section, or reduced airflow from the vents, a failed defrost heater is the most common cause.\u003c\/strong\u003e In Whirlpool-family frost-free refrigerators, the defrost heater cycles on periodically to melt frost off the evaporator coils — keeping airflow clear and temperatures stable. When it burns out, frost accumulates unchecked, blocking the evaporator fan and starving the fresh food compartment of cold air. \u003cstrong\u003e⚡ Common failure point in Whirlpool, KitchenAid, and Kenmore frost-free refrigerators.\u003c\/strong\u003e \u003cstrong\u003ePart WP12729127\u003c\/strong\u003e is the genuine OEM replacement heater that restores the automatic defrost cycle and normal cooling immediately.\u003c\/p\u003e\n\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✔ Freezer section is cold but fresh food compartment is warm\u003c\/li\u003e\n  \u003cli\u003e✔ Evaporator coils are visibly frosted over or completely iced up\u003c\/li\u003e\n  \u003cli\u003e✔ Defrost thermostat and defrost timer\/control board have been tested and are functional\u003c\/li\u003e\n  \u003cli\u003e✔ ONLY problem is heater element not energizing during the defrost cycle\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\u003ch3\u003e🔧 Common Symptoms\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFresh food compartment warm while freezer stays cold — most common complaint\u003c\/li\u003e\n  \u003cli\u003eThick frost or solid ice buildup on the back wall of the freezer\u003c\/li\u003e\n  \u003cli\u003eReduced or no airflow from fresh food vents\u003c\/li\u003e\n  \u003cli\u003eRefrigerator runs constantly but can’t maintain temperature\u003c\/li\u003e\n  \u003cli\u003eEvaporator fan running but no cold air reaching the fresh food section\u003c\/li\u003e\n  \u003cli\u003eDefrost cycle runs but frost does not melt off the coils\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e✔ If these symptoms match, this is the most likely failed component in the defrost system.\u003c\/p\u003e\n\u003cp\u003e✔ In most cases, replacing this defrost heater restores normal frost-free operation immediately.\u003c\/p\u003e\n\n\u003ch3\u003e📦 Part Details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e WP12729127\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Refrigerator Defrost Heater — glass-encased resistance heater that melts frost from evaporator coils during the automatic defrost cycle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrands:\u003c\/strong\u003e Whirlpool, KitchenAid, Kenmore\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"upsell-box\"\u003e\n  \u003cstrong\u003e⚠️ Replace the Full Defrost Kit While You’re In There:\u003c\/strong\u003e\u003cbr\u003e\n  The defrost heater, defrost thermostat, and defrost timer\/control all work together — if the heater has burned out, the thermostat may have failed first and caused the heater to overheat. Replacing just the heater without testing the thermostat risks burning out the new heater within months. \u003ca href=\"\/pages\/contact\"\u003eContact us\u003c\/a\u003e to source the matching thermostat for your model.\n\u003c\/div\u003e\n\n\u003ch3\u003e⚙️ Installation\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSkill Level: Moderate — 30 to 45 minutes.\u003c\/strong\u003e Unplug the refrigerator before servicing. Remove all freezer contents and shelving, then remove the rear evaporator cover panel to access the coils and heater. Disconnect the heater leads, remove the mounting clips, install the new heater, and reassemble in reverse. Allow the unit to run through a full defrost cycle before confirming the repair.\u003c\/p\u003e\n\n\u003ch3\u003e✓ Compatible Models\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003eContact us with your model number\u003c\/a\u003e to confirm compatibility before ordering.\u003c\/p\u003e\n\n\u003ch3\u003e💡 Pro Tip\u003c\/h3\u003e\n\u003cdiv class=\"pro-tip\"\u003e\n  \u003cstrong\u003eManual Defrost Before You Start:\u003c\/strong\u003e\u003cbr\u003e\n  If the evaporator coils are completely iced over, manually defrost the freezer with a hair dryer or by leaving the doors open for several hours before attempting the repair. Trying to remove the evaporator panel with the coils frozen solid risks cracking the panel and damaging the refrigerant lines. A clean defrost first makes the job faster and safer.\n\u003c\/div\u003e","brand":"XPart Supply Ltd.","offers":[{"title":"Default Title","offer_id":52758538092833,"sku":null,"price":119.55,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0897\/7783\/2225\/files\/WPL-WP12729127_0.jpg?v=1779746021","url":"https:\/\/xpartsupply.com\/products\/wp12729127-heater","provider":"XPart Supply Ltd.","version":"1.0","type":"link"}