{"product_id":"carrier-pg8jeb048090aaja-flame-sensor-cygrqy","title":"OEM Carrier Flame Sensor LH680534 \/ LH33WZ521 for PG8JEB048090AAJA","description":"\u003ch1\u003eOEM Carrier Flame Sensor LH680534 \/ LH33WZ521 for Model PG8JEB048090AAJA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier flame sensor for the \u003cstrong\u003eCarrier PG8JEB048090AAJA\u003c\/strong\u003e gas furnace. Part number \u003cstrong\u003eLH680534\u003c\/strong\u003e is the factory-authorized successor to the original \u003cstrong\u003eLH33WZ521\u003c\/strong\u003e and ships with a lead wire attached (LH680534 = Flame Sensor w\/Lead). The flame sensor is a small but mission-critical component: it uses electrical conductivity through the burner flame to prove ignition to the control board. When the rod becomes coated with oxidation or fails entirely, the board can no longer confirm a flame is present and will shut off the gas valve within 5–8 seconds of each ignition attempt — leaving you with a furnace that lights briefly, then locks out on a no-heat fault.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Numbers:\u003c\/strong\u003e LH680534 (primary, w\/Lead) | LH33WZ521 (superseded original) — direct factory replacement, no modifications required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM flame sensors use factory-matched rod geometry, ceramic insulator grade, and lead wire gauge. Generic aftermarket rods often exhibit higher oxidation rates and inconsistent microamp output, leading to nuisance lockouts and premature failure — especially in high-efficiency furnaces with tight control board tolerances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 1\/5\u003c\/strong\u003e — One of the easiest furnace repairs. Tools needed: 1\/4\" hex driver or nut driver, fine steel wool or light emery cloth (to clean rod surface if desired), and a multimeter to verify microamp output post-install. Turn off power and gas before servicing. Photograph wiring before disconnecting the lead.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty against defects. In-stock and ships same business day from our warehouse when ordered by cutoff time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Confirmed fitment for Carrier model \u003cstrong\u003ePG8JEB048090AAJA\u003c\/strong\u003e and other Carrier, Bryant, and Payne furnace models sharing the LH680534 \/ LH33WZ521 specification. Always verify your unit's existing part number on the sensor body or your furnace's parts list before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy — no guesswork.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643094356339,"sku":"CARRIE-PG8JEB048090AAJA-FLAME_SENSOR-LH33WZ521","price":53.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643094389107,"sku":"CARRIE-PG8JEB048090AAJA-FLAME_SENSOR-LH33WZ521-GEN","price":47.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-flame-sensor-LH33WZ521_57624b73-a6ff-4522-98ef-05b46e8c04e5.jpg?v=1775031200","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8jeb048090aaja-flame-sensor-cygrqy","provider":"National HVAC Parts","version":"1.0","type":"link"}