{"product_id":"carrier-pg8jaa042090afja-pressure-switch-jesotu","title":"OEM Carrier Pressure Switch Kit 6.5\" WC LP\/NG for PG8JAA042090AFJA","description":"\u003ch1\u003eOEM Carrier Pressure Switch Kit for Model PG8JAA042090AFJA (HK02LB008 \/ HK06WC091 \/ HK06WC100)\u003c\/h1\u003e\u003cp\u003eThis factory-matched OEM pressure switch kit is the correct replacement for the \u003cstrong\u003eCarrier PG8JAA042090AFJA\u003c\/strong\u003e packaged gas furnace. The pressure switch proves that the inducer blower has established proper draft before allowing the ignition sequence to proceed. When any switch in this circuit fails, the control board sees an open pressure switch fault and locks out — preventing burner ignition entirely. Common symptoms include a furnace that powers on, runs the inducer for 30–90 seconds, then shuts down with no spark or heat. This kit covers all three OEM part numbers used across PG8JAA042090AFJA production variants: \u003cstrong\u003eHK02LB008\u003c\/strong\u003e (Gas Pressure Switch, 6.5\" W.C. cut-out, LP\/NG rated), \u003cstrong\u003eHK06WC091\u003c\/strong\u003e (SPST Inducer Pressure Switch), and \u003cstrong\u003eHK06WC100\u003c\/strong\u003e (Pressure Switch with Mounting Bracket).\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e HK02LB008 — 6.5\" W.C. cut-out | LP \u0026amp; Natural Gas rated | Horizontal or vertical mount | Replaces HK02MB008 | HK06WC100 — 0.27\" W.C. Break \/ 0.42\" W.C. Max Make | SPST normally-open contacts | 24V control circuit compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are factory-calibrated to exact W.C. setpoints. Off-brand substitutes frequently carry ±15% W.C. tolerances, causing nuisance lockouts or — more dangerously — failing to prove draft, both of which shorten heat exchanger life and void manufacturer warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power down and lock out the unit before starting. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, and a manometer or magnehelic gauge for post-install verification. Photograph all hose routing before disconnecting. Inspect rubber hoses for cracks or blockages while the switch is out — a clogged port is a frequent root cause of switch failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before 3 PM local time ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the \u003cstrong\u003eCarrier PG8JAA042090AFJA\u003c\/strong\u003e packaged gas furnace. Always verify your unit's data plate W.C. rating and fuel type (LP vs. NG) before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643204784499,"sku":"CARRIE-PG8JAA042090AFJA-PRESSURE_SWITCH-HK02LB008","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643204817267,"sku":"CARRIE-PG8JAA042090AFJA-PRESSURE_SWITCH-HK02LB008-GEN","price":56.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02LB008_035ea2af-a98e-4ad6-9c17-34dfde05e625.jpg?v=1775038403","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8jaa042090afja-pressure-switch-jesotu","provider":"National HVAC Parts","version":"1.0","type":"link"}