{"product_id":"carrier-py3pna048090aa-flame-sensor-hp90er","title":"OEM Carrier Flame Sensor for PY3PNA048090AA — 48GS400192","description":"\u003ch1\u003eOEM Carrier Flame Sensor (48GS400192) for Model PY3PNA048090AA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM flame sensor (part number \u003cstrong\u003e48GS400192\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PY3PNA048090AA\u003c\/strong\u003e packaged gas\/electric unit. The flame sensor — also called a flame rod — is a safety component mounted in the burner assembly. It detects the presence of a live flame by passing a small microamp current through the flame to ground. When it fails, is coated with oxidation, or reads out of spec, the furnace or heating section will light briefly and then shut off within 5 to 8 seconds, triggering a safety lockout. Replacing the flame sensor with a genuine OEM part restores accurate flame detection and prevents nuisance lockouts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 48GS400192 | OEM-direct replacement | Factory-matched microamp sensitivity and rod geometry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM flame sensors are manufactured to exact factory current-draw tolerances. Aftermarket sensors often have inconsistent coatings and rod lengths that cause erratic readings, repeated lockouts, or premature failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off gas supply and 24V control power before servicing. Tools needed: 1\/4\" hex driver or nut driver, fine steel wool or emery cloth (to clean mounting bracket), multimeter with microamp setting to verify 1–10 µA flame signal after installation.\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 as a direct OEM replacement for the \u003cstrong\u003eCarrier PY3PNA048090AA\u003c\/strong\u003e packaged unit. Before ordering, verify the part number on your existing sensor or the unit's parts breakdown. The \u003cstrong\u003ePY3PNA048090AA\u003c\/strong\u003e is a 4-ton, 90,000 BTU packaged gas\/electric system. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — reach out via chat or phone.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640383295859,"sku":"CARRIE-PY3PNA048090AA-FLAME_SENSOR-48GS400192","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640383328627,"sku":"CARRIE-PY3PNA048090AA-FLAME_SENSOR-48GS400192-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-flame-sensor-48GS400192_ea53ccf2-e31c-4e65-9c8f-43dd7cec5c61.jpg?v=1775031025","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3pna048090aa-flame-sensor-hp90er","provider":"National HVAC Parts","version":"1.0","type":"link"}