{"product_id":"3977393-wp3977393-dryer-thermal-cut-off-fuse-replacement","title":"3977393 Dryer Thermal Cut Off Fuse Replacement Part","description":"\u003cp\u003eThe \u003cstrong\u003e3977393 dryer thermal cut off fuse\u003c\/strong\u003e is a direct replacement safety fuse used on Whirlpool built electric and gas dryers, most often as the heater box thermal cut off in the \u003cstrong\u003e279816 dryer thermostat and fuse kit\u003c\/strong\u003e. It is mounted on the heating element housing and acts as a backup safety device. If the high limit thermostat fails or airflow is blocked, the \u003cstrong\u003e3977393 cut off opens at approximately 309 degrees Fahrenheit\u003c\/strong\u003e and permanently kills heater power to prevent a fire.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"ybc-ul-component\"\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eRestores A Dead Heater Circuit\u003c\/strong\u003e – Fixes dryers that suddenly lose all heat after the heater box overheats\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eOEM Kit Cross Reference\u003c\/strong\u003e – Functions as the cut off half of kit 279816 and matches WP3977393 spec\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eNon Resettable Safety Device\u003c\/strong\u003e – One time open at 309 F, must be replaced after it blows\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eCheap Insurance Against Fire\u003c\/strong\u003e – Stops the heating element from glowing red inside a lint filled cabinet\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eFast Back Panel Repair\u003c\/strong\u003e – Two spade terminals, mounts with the existing heater box hardware, 20 to 30 minutes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"ybc-ul-component\"\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3977393 \/ WP3977393 (cut off half of 279816 kit)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Dryer thermal cut off fuse, single use non resettable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eTrip Temperature:\u003c\/strong\u003e 309 degrees Fahrenheit (154 degrees Celsius)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eTerminals:\u003c\/strong\u003e Push on spade terminals, fits standard heater box bracket\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eBody Size:\u003c\/strong\u003e Approximately 2 inches long by 1.75 inches wide\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Ceramic and metal with plastic insulator sleeve\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 cut off fuse per order\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eLocation:\u003c\/strong\u003e Heating element housing or heater box cover\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Brands\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhirlpool, Kenmore, Maytag, Amana, Roper, KitchenAid, Crosley, Inglis, Estate, Admiral, Magic Chef, Jenn Air\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReplaces These Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e3977393, WP3977393, 279816, 279816VP, 3399848, 2651, AP3094244, PS334299, EAP334299, AH334299, EA334299\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Symptoms This Part Fixes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"ybc-ul-component\"\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003eNo heat after the dryer was running hot\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003eHeater stopped working but the drum still tumbles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003eDryer tripped the high limit 3977767 and will not reheat\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003eClothes take two or three cycles to dry\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003eBurning smell followed by total heat loss\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ybc-li-component ybc-li-component_ul\"\u003e\n\u003cspan class=\"ybc-li-component__dot-wp\"\u003e\u003c\/span\u003e\n\u003cp\u003eThermal fuse 3392519 keeps blowing again after replacement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAlways \u003cstrong\u003eunplug the dryer before opening the rear panel\u003c\/strong\u003e. The 3977393 cut off is a symptom, not the root cause. Before powering up, \u003cstrong\u003eclean the lint screen, transition hose, and exterior vent\u003c\/strong\u003e, check the blower wheel for lint packing, and test the \u003cstrong\u003e3977767 high limit thermostat, 3387134 cycling thermostat, and 3392519 thermal fuse\u003c\/strong\u003e with a multimeter. If the heater coil 279838 is grounded or the vent is crushed, the new 3977393 will blow on the first hot load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment Reminder\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis cut off appears in both old style slide on heater box kits and new style 279816 screw mount kits depending on model year. Match your original stamped number or send us the full dryer model tag and we will confirm whether you need 3977393 alone or the full 279816 kit with the L250 high limit thermostat.\u003c\/p\u003e","brand":"Aibopart","offers":[{"title":"Default Title","offer_id":52149854470442,"sku":null,"price":0.0,"currency_code":"CNY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/5742\/3914\/files\/3977393-wp3977393-dryer-thermal-cut-off-fuse-replacement.jpg?v=1785403943","url":"https:\/\/www.aibopart.com\/products\/3977393-wp3977393-dryer-thermal-cut-off-fuse-replacement","provider":"My Store","version":"1.0","type":"link"}