{"product_id":"carrier-py3gpaa42090na-pressure-switch-h43sg3","title":"OEM Carrier Pressure Switch 0.18\" WC SPST for PY3GPAA42090NA","description":"\u003ch1\u003eOEM Carrier Draft Pressure Switch 0.18\" WC SPST for Model PY3GPAA42090NA\u003c\/h1\u003e\u003cp\u003eThis OEM draft inducer pressure switch (part number \u003cstrong\u003eHK06WC061\u003c\/strong\u003e, current updated replacement: \u003cstrong\u003eHK06MB061\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3GPAA42090NA\u003c\/strong\u003e packaged gas unit. The pressure switch proves that the inducer motor has established proper negative pressure (draft) before allowing the control board to energize the igniter and open the gas valve. When this switch fails or becomes stuck open, the furnace or packaged unit will lock out before ignition — often displaying a fault code for a failed pressure switch — leaving you with no heat and a frustrating no-start condition.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 0.18\" Water Column (W.C.) setpoint | SPST (Single-Pole Single-Throw) | Normally Open | Replaces Honeywell IS20224-5236 | OEM part HK06WC061 superseded by HK06MB061\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are calibrated to the exact W.C. rating required by your unit's heat exchanger design. An off-spec generic switch can open too early or too late, causing nuisance lockouts or — more dangerously — allowing combustion without confirmed draft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power down the unit and confirm zero voltage before starting. Tools needed: #2 Phillips screwdriver, 1\/4\" nut driver, needle-nose pliers. Disconnect the rubber tubing and two spade terminals, swap the switch, reconnect, and verify operation through a full call-for-heat cycle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM fit for \u003cstrong\u003eCarrier PY3GPAA42090NA\u003c\/strong\u003e packaged gas\/electric units. Also fits select Bryant and Payne models using the same 0.18\" W.C. SPST draft switch. Always confirm the W.C. rating on your existing switch or unit data plate before ordering. Have questions about fit? Our HVAC parts specialists verify compatibility before you buy — order with confidence and get it shipped today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640437657971,"sku":"CARRIE-PY3GPAA42090NA-PRESSURE_SWITCH-HK06WC061","price":47.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640437690739,"sku":"CARRIE-PY3GPAA42090NA-PRESSURE_SWITCH-HK06WC061-GEN","price":41.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK06WC061_757ad3a9-f137-47a2-98d6-43df9eac6d27.jpg?v=1775036761","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gpaa42090na-pressure-switch-h43sg3","provider":"National HVAC Parts","version":"1.0","type":"link"}