{"product_id":"icp-pressure-switch-for-wpg4484130lka1-with-tubing-ships-today","title":"ICP Pressure Switch for WPG4484130LKA1 – With Tubing | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM pressure switch with tubing (part number 1178417) is the draft safety control on your ICP WPG4484130LKA1 system. It senses negative pressure created by the inducer\/draft motor and proves that the venting is clear before allowing the furnace to ignite. If the switch does not close, the control board will not advance to ignition — protecting against blocked flue conditions and dangerous flue gas spillage. Common failure symptoms include a furnace that runs the inducer but never lights, a unit stuck in a pressure-switch lockout, or a cracked or clogged sensing tube.\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\u003ePressure Switch with Tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eDraft \/ Venting Safety Proving\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect OEM fit for the ICP \/ Tempstar \/ Heil WPG4484130LKA1 unit. Used across ICP-family furnaces and package units that rely on the same inducer draft-proving switch.\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 and shut off the gas supply, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e – Remove the service panel to reach the switch and inducer assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e – Photograph the wiring and tubing routing before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e – Disconnect the electrical terminals and sensing tube, then unscrew the old switch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e – Mount the new switch, reconnect the tubing and wires, and confirm the tube has no kinks or blockages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e – Restore power and gas, start a heat cycle, and confirm the switch closes and the burners ignite.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInducer runs but furnace never lights\u003c\/li\u003e\n\u003cli\u003eFurnace locks out on a pressure switch fault code\u003c\/li\u003e\n\u003cli\u003eCracked, clogged, or disconnected sensing tube\u003c\/li\u003e\n\u003cli\u003eSwitch fails to close even with clear venting\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":63021502824819,"sku":"WPG4484130LKA1","price":38.94,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047706542451,"sku":"WPG4484130LKA1-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-WPG4484130LKA1.jpg?v=1782895180","url":"https:\/\/nationalhvacparts.com\/products\/icp-pressure-switch-for-wpg4484130lka1-with-tubing-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}