{"product_id":"icp-pressure-switch-for-wpg4304060rkb1-furnace-tubing-switch-ships-today","title":"ICP Pressure Switch for WPG4304060RKB1 — Furnace Tubing Switch | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM tubing pressure switch (part #1178417) is the safety control that proves proper venting and draft before the burners are allowed to light on your ICP\/Tempstar\/Heil WPG4304060RKB1 packaged unit. The inducer motor creates negative pressure that, through the sensing tubing, closes the switch and signals the control board that the flue is clear. If the switch does not close, the furnace will not fire — a critical protection against carbon monoxide spillage from a blocked vent. A failed switch, cracked tubing, or a clogged port commonly causes ignition lockouts and no-heat complaints.\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\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 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 \/ Vent Proving Safety Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eGas Furnace\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect-fit OEM safety control for the ICP\/Tempstar\/Heil WPG4304060RKB1 packaged gas\/electric unit and related ICP-family models originally equipped with part 1178417. Confirm the trip pressure rating and port\/tubing configuration match your existing switch before installation.\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 electrical power and verify zero voltage with a multimeter before servicing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control compartment service panel to reach the pressure switch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the wiring spades and tubing routing before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Pull the sensing tube and electrical leads, then unscrew the old switch from its bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new switch, reattach the tubing so it is kink-free and draining toward the inducer, and reconnect the leads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, start a heat cycle, and confirm the switch closes and the burners ignite normally.\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 burners never light\u003c\/li\u003e\n\u003cli\u003eControl board flashes a pressure switch fault code\u003c\/li\u003e\n\u003cli\u003eRepeated ignition lockouts on a clear, unblocked vent\u003c\/li\u003e\n\u003cli\u003eSwitch fails to close or open when tested with a manometer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\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":63021515112819,"sku":"1178417","price":38.94,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047705657715,"sku":"1178417-GEN","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-single-1178417_4f2a3891-7144-4613-ad67-21db6328810d.jpg?v=1782895124","url":"https:\/\/nationalhvacparts.com\/products\/icp-pressure-switch-for-wpg4304060rkb1-furnace-tubing-switch-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}