{"product_id":"carrier-py3gna024040na-pressure-switch-h43sg3","title":"OEM Carrier Pressure Switch 0.18 WC for PY3GNA024040NA — HK06WC061","description":"\u003ch1\u003eOEM Carrier Draft Inducer Pressure Switch 0.18\" WC for Model PY3GNA024040NA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier draft pressure switch (part number \u003cstrong\u003eHK06WC061\u003c\/strong\u003e, updated replacement \u003cstrong\u003eHK06MB061\u003c\/strong\u003e) is the factory-specified pressure proving switch for the \u003cstrong\u003eCarrier PY3GNA024040NA\u003c\/strong\u003e packaged unit. Its job is to verify that the inducer motor is producing adequate negative pressure before allowing the control board to proceed with ignition. When this switch fails, the furnace will go into a hard lockout — typically before any ignition attempt — leaving you with a system that powers on but produces no heat.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 0.18\" Water Column (WC) | Normally open, closes on negative pressure | Single-port design | Cross-references Honeywell IS20224-5236 | Compatible with Bryant, Carrier, and Payne platforms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM switches are calibrated to the exact ±0.01\" WC tolerance required by this unit. Off-spec generic switches can trigger nuisance lockouts or, worse, allow ignition under unsafe draft conditions — always use OEM on pressure-sensitive packaged units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Turn off power and gas before servicing. Tools needed: flathead screwdriver, 1\/4\" nut driver, manometer (recommended to verify draft pressure post-install). Photograph hose routing before disconnecting. The hose barb connects to the inducer housing port; ensure tubing is free of cracks or blockage.\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 \u0026amp; Supersession Note:\u003c\/strong\u003e Originally sold as HK06WC061, this part has been superseded by \u003cstrong\u003eHK06MB061\u003c\/strong\u003e — the direct OEM replacement shipped for all new orders. Both part numbers are fully interchangeable on the \u003cstrong\u003eCarrier PY3GNA024040NA\u003c\/strong\u003e. Also fits select Bryant and Payne packaged unit and furnace models with a 0.18\" WC pressure switch specification. Verify the WC rating on your existing switch before ordering. Not sure? Our HVAC-certified team will verify fitment before you buy — contact us before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640488350067,"sku":"CARRIE-PY3GNA024040NA-PRESSURE_SWITCH-HK06WC061","price":42.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640488382835,"sku":"CARRIE-PY3GNA024040NA-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_ba925d6a-d916-4c2a-b0d0-f9ea2763f9c5.jpg?v=1775036514","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gna024040na-pressure-switch-h43sg3","provider":"National HVAC Parts","version":"1.0","type":"link"}