{"product_id":"pressure-switch-draft-inducer-0-50-w-c-n-o","title":"Pressure Switch Draft Inducer -0.50 W.C. N.O.","description":"\u003cdiv class=\"nhvac-product-page\"\u003e\n  \u003cdiv class=\"product-description section\"\u003e\u003cp\u003eThe draft inducer pressure switch monitors that the combustion exhaust is properly venting. Before allowing ignition, it verifies the draft inducer motor is creating sufficient negative pressure in the flue. If pressure is inadequate, it keeps the gas valve closed - a critical safety function to prevent carbon monoxide buildup.\u003c\/p\u003e\u003c\/div\u003e\n  \u003cdiv class=\"failure-symptoms section\"\u003e\n    \u003ch3\u003eSigns This Part Has Failed\u003c\/h3\u003e\n    \u003cdiv class=\"pd-symptoms\"\u003e\n\u003cdiv class=\"pd-symptom\"\u003e\n\u003cspan class=\"pd-symptom-icon\"\u003e!\u003c\/span\u003e\u003cspan\u003eFurnace inducer runs but ignition never happens\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-symptom\"\u003e\n\u003cspan class=\"pd-symptom-icon\"\u003e!\u003c\/span\u003e\u003cspan\u003ePressure switch fault code (Code 31\/33 on most boards)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-symptom\"\u003e\n\u003cspan class=\"pd-symptom-icon\"\u003e!\u003c\/span\u003e\u003cspan\u003eFlue or drain pan blocked with water or debris\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-symptom\"\u003e\n\u003cspan class=\"pd-symptom-icon\"\u003e!\u003c\/span\u003e\u003cspan\u003eSwitch diaphragm cracked or port tubing blocked\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"installation-guide section\"\u003e\n    \u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n    \u003cp\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e Moderate - test before replacing.\u003c\/p\u003e\n    \u003cdiv class=\"install-steps\"\u003e\n\u003cdiv class=\"install-step\"\u003e\n\u003cdiv class=\"step-num\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePower Down Completely\u003c\/strong\u003e\u003cp\u003eTurn off power at the disconnect switch and the circuit breaker. Verify with a non-contact voltage tester. For gas systems, turn off the gas supply valve.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"install-step\"\u003e\n\u003cdiv class=\"step-num\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eAccess the Component\u003c\/strong\u003e\u003cp\u003eRemove the access panel (2-4 screws). Locate the component inside the electrical or combustion section of the unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"install-step\"\u003e\n\u003cdiv class=\"step-num\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePhotograph All Wiring\u003c\/strong\u003e\u003cp\u003eTake clear photos of every wire connection before touching anything. This is your reinstallation reference.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"install-step\"\u003e\n\u003cdiv class=\"step-num\"\u003e4\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRemove the Failed Part\u003c\/strong\u003e\u003cp\u003eDisconnect wire terminals and remove mounting screws or brackets. Note the orientation of the old part for reference.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"install-step\"\u003e\n\u003cdiv class=\"step-num\"\u003e5\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInstall the New Part\u003c\/strong\u003e\u003cp\u003eMount the new component in the same orientation. Reconnect all wires exactly as shown in your photos. Ensure all terminals are fully seated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"install-step\"\u003e\n\u003cdiv class=\"step-num\"\u003e6\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRestore Power and Test\u003c\/strong\u003e\u003cp\u003eReplace access panel, restore power at breaker then disconnect. Test thermostat for full heating or cooling cycle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Before replacing the switch, blow through the rubber port tubing to clear any condensate blockage - 40% of pressure switch faults are caused by a blocked tube, not a failed switch.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"compatibility section\"\u003e\n    \u003ch3\u003eCompatible Brands\u003c\/h3\u003e\n    \u003cp\u003eCarrier, Bryant, Trane, Goodman, Amana, Lennox, Rheem, Ruud, York, Heil\u003c\/p\u003e\n    \u003ch3\u003eOEM Cross Reference\u003c\/h3\u003e\n    \u003ctable class=\"compat-table\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eCompatible Model Numbers\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCarrier\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHK06NB007, HK06NB009\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrane\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSWT02543\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGoodman\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eB1370188S, B1370146S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRheem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e42-24025-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYork\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eS1-02531099000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"product-faq section\"\u003e\n    \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n    \u003cdiv class=\"faq-item\"\u003e\n\u003cstrong class=\"faq-q\"\u003eHow do I test a pressure switch?\u003c\/strong\u003e\u003cp class=\"faq-a\"\u003eUse a multimeter on continuity. A normally-open (N.O.) switch should be open at rest and close when the inducer is running. Blow gently into the port tube - you should hear\/feel it click closed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cstrong class=\"faq-q\"\u003eWhat does -0.50 W.C. mean?\u003c\/strong\u003e\u003cp class=\"faq-a\"\u003eThe switch closes (allows ignition) when the inducer creates at least 0.50 inches of water column negative pressure. Match this rating exactly when ordering a replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nhvac-related-links\"\u003e\n\u003ch3\u003eShop Related Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-switches\"\u003eShop All pressure-switches\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/carrier-parts\"\u003eShop All Carrier Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/hvac-parts\"\u003eShop All HVAC Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62608951345523,"sku":"HK06NB007-OEM","price":24.0,"currency_code":"USD","in_stock":true},{"title":"Replacement","offer_id":62608951378291,"sku":"HK06NB007-REP","price":19.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK06NB007-OEM.jpg?v=1775043231","url":"https:\/\/nationalhvacparts.com\/products\/pressure-switch-draft-inducer-0-50-w-c-n-o","provider":"National HVAC Parts","version":"1.0","type":"link"}