{"product_id":"icp-pressure-switch-tubing-for-wpg4604115lka1-oem-sensing-line-ships-today","title":"ICP Pressure Switch Tubing for WPG4604115LKA1 — OEM Sensing Line | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM pressure switch tubing (part number 1178417) is the factory sensing line that connects the pressure switch to the inducer\/collector box on the ICP \/ Tempstar \/ Heil WPG4604115LKA1 packaged unit. The tube transmits the small negative pressure created by the induced-draft blower to the diaphragm of the pressure switch, proving safe venting before the control board allows ignition. Over time these lines crack, harden, kink, or fill with condensate, which sends a false reading to the switch. The result is a furnace that won't light, locks out on a pressure-switch fault, or short-cycles on the heat call. Replacing the original tubing with the correct OEM line restores accurate pressure proving and reliable startup.\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 Sensing Tubing\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\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eConnects pressure switch to inducer\/collector box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eDraft proving \/ ignition safety\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 replacement for the ICP \/ Tempstar \/ Heil WPG4604115LKA1 packaged unit and other ICP-family models that use the same pressure switch tubing routing. Confirm the tube length and fitting size against your existing line 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 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 burner\/control service panel to reach the pressure switch and inducer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the existing tube routing and both connection ports before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Gently pull the old tubing from the pressure switch port and the inducer\/collector box fitting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Push the new OEM tube fully onto both ports, matching the original routing with no kinks or low spots that trap condensate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, start a heat call, and confirm the inducer proves and the burners light 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 locks out on a pressure-switch fault code\u003c\/li\u003e\n\u003cli\u003eInducer runs but burners never ignite\u003c\/li\u003e\n\u003cli\u003eCracked, brittle, kinked, or condensate-filled sensing line\u003c\/li\u003e\n\u003cli\u003eIntermittent heat that improves after blowing out the tube\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":63021499875699,"sku":"WPG4604115LKA1","price":35.04,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047707787635,"sku":"WPG4604115LKA1-GEN","price":26.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-single-WPG4604115LKA1.jpg?v=1782895262","url":"https:\/\/nationalhvacparts.com\/products\/icp-pressure-switch-tubing-for-wpg4604115lka1-oem-sensing-line-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}