{"product_id":"carrier-pg8maa042090abja-pressure-switch-h43sgb","title":"OEM Carrier Pressure Switch Assembly w\/Bracket 3\" WC — PG8MAA042090ABJ","description":"\u003ch1\u003eOEM Carrier Pressure Switch Assembly w\/Bracket for Model PG8MAA042090ABJA — Part# HK06WC069\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier pressure switch assembly (with mounting bracket) for the \u003cstrong\u003eCarrier PG8MAA042090ABJA\u003c\/strong\u003e gas furnace. The pressure switch is a critical safety device that monitors negative pressure created by the inducer motor during the pre-purge cycle. If the switch fails to close — or fails to open — the integrated furnace control board will lock out ignition and prevent the burners from firing. Common symptoms of a failed pressure switch include a furnace that attempts to start but immediately shuts down, a continuous inducer motor run with no ignition, or a fault code indicating a pressure switch error on the control board.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e -3\" W.C. (inches water column) rating | SPST (Single-Pole, Single-Throw) | Normally Open | Includes factory mounting bracket | Compatible with Factory Authorized Parts (FAP) program\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This factory OEM part is manufactured to exact Carrier pressure tolerances (±0.05\" W.C.). Generic aftermarket switches often ship with looser calibration tolerances, which can cause nuisance lockouts or — more dangerously — allow the furnace to fire under inadequate draft conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power down the furnace and confirm inducer motor health before replacing. Tools needed: 1\/4\" nut driver, flathead screwdriver, and a manometer or magnehelic gauge to verify draft pressure. Disconnect the rubber hose, spade terminals, and two bracket screws. Reconnect in reverse order. Always clear fault codes after replacement.\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 Designed and factory-specified for the \u003cstrong\u003eCarrier PG8MAA042090ABJA\u003c\/strong\u003e gas furnace. Verify the -3\" W.C. rating and SPST configuration against your unit's wiring diagram before ordering. Not sure if this is your part? Our HVAC parts specialists verify fitment before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643045138803,"sku":"CARRIE-PG8MAA042090ABJA-PRESSURE_SWITCH-HK06WC069","price":76.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643045171571,"sku":"CARRIE-PG8MAA042090ABJA-PRESSURE_SWITCH-HK06WC069-GEN","price":67.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK06WC069_d8ef24aa-f866-455d-a00a-fc6883d517d2.jpg?v=1775037181","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8maa042090abja-pressure-switch-h43sgb","provider":"National HVAC Parts","version":"1.0","type":"link"}