{"product_id":"233355-suburban-sail-switch","title":"233355 Suburban SAIL SWITCH","description":"\u003ch1\u003e\u003cspan\u003e233355 Suburban SAIL SWITCH\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cstrong\u003eNormal Stock Item\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSAIL SWITCH Replaces – OLD 232279\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor Model: NT-40\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Suburban 233355 Sail Switch is the airflow‑proving safety device used in Suburban RV furnaces. Before ignition can occur, the blower must generate enough airflow to lift the internal “sail” and close the switch. If airflow is weak—due to a failing motor, blocked ducts, or debris—the switch remains open, preventing ignition and protecting the furnace from overheating. Because this component sits directly in the blower airstream, it is prone to dust buildup, sticking, and mechanical wear, making it a common cause of “blower runs but no heat” service calls.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOEM Suburban furnace sail switch\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConfirms proper blower airflow before ignition\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrevents ignition under unsafe airflow conditions\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDirect replacement for \u003cstrong\u003e232279\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStandard Suburban mounting pattern for easy installation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDurable design for RV furnace environments\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHelps resolve intermittent‑ignition and no‑heat issues\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSuburban RV furnaces with airflow‑verification faults\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNo‑heat or intermittent‑heat troubleshooting\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReplacing worn, sticking, or debris‑affected sail switches\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Laurelhurst","offers":[{"title":"Default Title","offer_id":42464232308802,"sku":"S233355","price":6.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/files\/OIP_24_2d445153-57a9-4632-9752-debf1fd7d7f0.webp?v=1758495925","url":"https:\/\/hvacpartstore.com\/products\/233355-suburban-sail-switch","provider":"HVACpartstore","version":"1.0","type":"link"}