{"product_id":"icp-tubing-pressure-switch-for-wpg3604130lkc1-oem-1178417-ships-today-1","title":"ICP Tubing Pressure Switch for WPG3604130LKC1 — OEM 1178417 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis genuine ICP air pressure switch (OEM part number 1178417) is the safety device that confirms proper combustion-air and venting flow before your furnace or packaged unit allows ignition. It is a normally-open, single-pole switch with an integrated sensing tube that monitors the negative pressure created by the inducer\/draft motor. When the inducer pulls the correct vacuum, the diaphragm closes the contacts and signals the control board that it is safe to energize the igniter and open the gas valve. A failed switch will not close, will not prove flow, and will lock the unit out on a no-heat fault. This is the exact OEM pressure switch fitted to the ICP \/ Tempstar \/ Heil model WPG3604130LKC1.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\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\u003eOEM Part Number\u003c\/td\u003e\n\u003ctd\u003e1178417\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003ctd\u003eTubing Pressure Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eAir \/ Combustion Proving Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP (Tempstar \/ Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eSingle-pole, normally open\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003eSensing tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eWPG3604130LKC1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eEngineered as a direct OEM replacement for the ICP \/ Tempstar \/ Heil packaged unit WPG3604130LKC1. ICP-family equipment (Comfortmaker, Arcoaire, KeepRite, Day \u0026amp; Night) shares many components, but always match the exact OEM number 1178417 and the switch's pressure set point before installing.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the unit disconnect or breaker and verify zero voltage with a multimeter before touching any wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the blower\/control compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the two spade terminals and the sensing tube routing before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Pull the sensing tube off the port, disconnect the wire leads, and remove the mounting screws holding the old switch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new switch, reconnect the wire leads, and reattach the sensing tube to the correct port, ensuring no kinks or moisture traps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and start a heat call; confirm the inducer runs, the switch proves, and ignition completes without lockout.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace inducer runs but the unit never ignites (no-heat lockout).\u003c\/li\u003e\n\u003cli\u003eControl board flashes a pressure-switch or open-circuit fault code.\u003c\/li\u003e\n\u003cli\u003eShort cycling or repeated retries on a heat call.\u003c\/li\u003e\n\u003cli\u003eCracked, blocked, or disconnected sensing tube and a switch that won't close.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day on orders placed before 3 PM CST. 30-day returns on unused parts. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63027215827315,"sku":"1178417","price":42.84,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047757070707,"sku":"1178417-GEN","price":32.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-single-1178417_c9d75737-e2f9-4584-b067-5582c5e67ef6.jpg?v=1782897004","url":"https:\/\/nationalhvacparts.com\/products\/icp-tubing-pressure-switch-for-wpg3604130lkc1-oem-1178417-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}