{"product_id":"carrier-py3gpaa42060aa-pressure-switch-h43sg3","title":"OEM Carrier Furnace Pressure Switch 0.18 WC for PY3GPAA42060AA","description":"\u003ch1\u003eOEM Carrier Furnace Pressure Switch 0.18\" WC for Model PY3GPAA42060AA\u003c\/h1\u003e\u003cp\u003eThis OEM draft-proving pressure switch is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3GPAA42060AA\u003c\/strong\u003e packaged gas unit. Originally sold as part number \u003cstrong\u003eHK06WC061\u003c\/strong\u003e and now superseded by \u003cstrong\u003eHK06MB061\u003c\/strong\u003e, this switch monitors inducer blower pressure to confirm safe venting conditions before allowing the gas valve to open. When it fails or sticks open, the furnace will lock out before ignition — typically displaying a fault code and refusing to produce heat even though the inducer motor is running normally.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 0.18\" W.C. (inches water column) set point | Normally open, closes on draft proof | SPST configuration | Direct OEM replacement for Carrier, Bryant, and Payne packaged units | Cross-references Honeywell IS20224-5236\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are calibrated to exact factory W.C. tolerances. Generic substitutes can drift outside spec, causing nuisance lockouts or — more dangerously — failing to detect a blocked flue, creating a carbon monoxide risk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power and gas before servicing. Tools needed: 1\/4\" nut driver, needle-nose pliers, and a short length of replacement hose (3\/16\" I.D.). Always check the rubber tubing for cracks or blockages, as a clogged hose is the most common cause of pressure switch failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM fit for Carrier model \u003cstrong\u003ePY3GPAA42060AA\u003c\/strong\u003e packaged gas\/electric unit. Also fits select Bryant and Payne models requiring a 0.18\" W.C. draft pressure switch. Verify the W.C. rating on your existing switch's label before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640438444403,"sku":"CARRIE-PY3GPAA42060AA-PRESSURE_SWITCH-HK06WC061","price":42.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640438477171,"sku":"CARRIE-PY3GPAA42060AA-PRESSURE_SWITCH-HK06WC061-GEN","price":37.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK06WC061_4c978432-e6fe-41e7-b62e-4282bb7cf081.jpg?v=1775031429","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gpaa42060aa-pressure-switch-h43sg3","provider":"National HVAC Parts","version":"1.0","type":"link"}