{"product_id":"carrier-pg8jvb066135aaja-pressure-switch-h43srw","title":"OEM Carrier Pressure Switch High Fire for PG8JVB066135AAJA — HK06WC091","description":"\u003ch1\u003eOEM Carrier High-Fire Pressure Switch HK06WC091 for Model PG8JVB066135AAJA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier pressure switch (part number \u003cstrong\u003eHK06WC091\u003c\/strong\u003e) is the factory-specified draft-proving switch for the \u003cstrong\u003eCarrier PG8JVB066135AAJA\u003c\/strong\u003e gas furnace. The pressure switch monitors the vacuum created by the induced-draft blower to confirm safe venting conditions before the control board allows ignition to proceed. When this switch fails, it breaks the proving circuit — causing the furnace to lock out before ignition, often with a flashing fault code indicating an open pressure switch. Common symptoms include a furnace that starts the inducer motor but never advances to ignition, or one that attempts ignition and immediately trips into hard lockout.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Specs:\u003c\/strong\u003e SPST (Single-Pole, Single-Throw) | High-Fire rated | Factory Authorized Part manufactured by Honeywell for Carrier | Replaces superseded part; current OEM cross is HK06MC110\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are calibrated to exact water-column (W.C.) trip points specified for your furnace's inducer and heat exchanger. Generic alternatives may use wider tolerances, risking nuisance trips or — more critically — failure to prove a venting fault, which creates a carbon monoxide hazard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Disconnect power and gas before starting. Tools needed: 1\/4\" nut driver, needle-nose pliers, and a short length of replacement hose if the original is cracked. Note the hose port orientation and wire terminal positions before disconnecting. Swap hose and spade terminals, restore power, and verify ignition sequence.\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 for the \u003cstrong\u003eCarrier PG8JVB066135AAJA\u003c\/strong\u003e gas furnace. Also fits many Carrier, Bryant, and Payne gas furnace applications sharing this high-fire pressure switch specification — verify your data plate and existing part number before ordering. Note: HK06WC091 has been superseded; this listing ships the current OEM replacement. Questions about fitment? Our HVAC parts team confirms compatibility before your order ships.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643090129267,"sku":"CARRIE-PG8JVB066135AAJA-PRESSURE_SWITCH-HK06WC091","price":77.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643090162035,"sku":"CARRIE-PG8JVB066135AAJA-PRESSURE_SWITCH-HK06WC091-GEN","price":68.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK06WC091_6b016caa-d046-4c3e-842e-ed721de5c2f1.jpg?v=1775038302","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8jvb066135aaja-pressure-switch-h43srw","provider":"National HVAC Parts","version":"1.0","type":"link"}