{"product_id":"carrier-py3pna048090nb-flame-sensor-hp90er","title":"OEM Carrier Flame Sensor 90° w\/ Mounting for PY3PNA048090NB","description":"\u003ch1\u003eOEM Carrier Flame Sensor 90° with Mounting Bracket for Model PY3PNA048090NB\u003c\/h1\u003e\u003cp\u003eThis OEM flame sensor (part #48GS400192) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3PNA048090NB\u003c\/strong\u003e gas furnace. The flame sensor is a critical safety component that uses flame rectification to confirm the presence of a burner flame during each heating cycle. When it detects a valid flame signal, it allows the gas valve to stay open and the furnace to continue heating. A failed or carbon-fouled sensor cannot produce the required microamp signal — causing the control board to cut gas flow and lock out the furnace, typically 5 to 8 seconds after ignition. The result: a furnace that lights briefly, then shuts off repeatedly before ever reaching set temperature.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 90° sensor rod with mounting bracket | OEM part #48GS400192 | Approximate dimensions: 4.9\"(H) × 1.75\"(W) × 1.6\"(L) rod | Direct factory replacement — no modifications required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM part, manufactured to exact factory microamp tolerances. Generic flame sensors vary in rod angle, bracket geometry, and alloy composition — risking persistent lockouts or nuisance shutdowns even after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — A straightforward single-screw R\u0026amp;R. Tools needed: 1\/4\" hex driver or nut driver, needle-nose pliers, and a multimeter (to verify microamp draw post-install). Always disconnect power at the breaker before servicing. Tip: lightly sand the sensor rod with fine steel wool if reusing — do not use on a new OEM part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PY3PNA048090NB\u003c\/strong\u003e gas furnace. Verify your existing sensor's mounting angle (90°) and bracket style against your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — contact us today. \u003cstrong\u003eIn stock and ready to ship.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640380739955,"sku":"CARRIE-PY3PNA048090NB-FLAME_SENSOR-48GS400192","price":26.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640380772723,"sku":"CARRIE-PY3PNA048090NB-FLAME_SENSOR-48GS400192-GEN","price":23.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-flame-sensor-48GS400192_9fa36ad0-945f-4052-a986-4bf552bc1869.jpg?v=1775029702","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3pna048090nb-flame-sensor-hp90er","provider":"National HVAC Parts","version":"1.0","type":"link"}