{"product_id":"icp-tubing-pressure-switch-for-wpg3484130lkc1-oem-1178417-ships-today-1","title":"ICP Tubing Pressure Switch for WPG3484130LKC1 — OEM 1178417 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis genuine ICP tubing pressure switch (OEM part 1178417) is the air-proving safety control for the WPG3484130LKC1 package unit. It senses negative draft pressure created by the inducer blower and closes its contacts to confirm proper venting before the ignition sequence is allowed to begin. If adequate draft is not detected, the switch keeps its contacts open and locks out ignition to prevent unsafe combustion. A failed or out-of-range pressure switch is one of the most common causes of a furnace that runs the inducer but never lights, or that short-cycles on a flashing control code. Replacing it with the correct OEM-spec switch restores reliable, safe heating operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1178417\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eTubing Air Pressure Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP (Tempstar \/ Heil \/ Comfortmaker)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eDraft \/ air-proving safety switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM direct replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eWPG3484130LKC1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eEngineered as a direct-fit replacement for the ICP Tempstar Heil WPG3484130LKC1 package unit and shares the same pressure tap, electrical terminals, and mounting bracket as the original control. Always confirm the part number stamped on your existing switch before ordering.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the unit disconnect and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control\/blower service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the wiring and the pressure tubing routing before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Pull the spade connectors, slide off the rubber pressure tube, and unscrew the switch from its bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new switch, reconnect the tubing without kinks, and reattach the wires per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, start a heat call, and confirm the inducer proves and the burners light normally.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInducer runs but the burners never ignite\u003c\/li\u003e\n\u003cli\u003eFurnace short-cycles or locks out with a pressure-switch fault code\u003c\/li\u003e\n\u003cli\u003eSwitch contacts stuck open or stuck closed when tested with a meter\u003c\/li\u003e\n\u003cli\u003eCracked switch body or a pressure tube that no longer holds the diaphragm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63027217826163,"sku":"1178417","price":44.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047756710259,"sku":"1178417-GEN","price":34.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-single-1178417_459e1aba-1aa9-4f30-8ee3-950070235cd8.jpg?v=1782896991","url":"https:\/\/nationalhvacparts.com\/products\/icp-tubing-pressure-switch-for-wpg3484130lkc1-oem-1178417-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}