{"product_id":"carrier-pg9mxa060100aasa-flame-sensor-cygrm8","title":"OEM Carrier Flame Sensor LH33WZ518 for PG9MXA060100AASA","description":"\u003ch1\u003eOEM Carrier Flame Sensor LH33WZ518 for Model PG9MXA060100AASA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier flame sensor (part number \u003cstrong\u003eLH33WZ518\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PG9MXA060100AASA\u003c\/strong\u003e gas furnace. The flame sensor is a small but mission-critical safety component: once the igniter lights the burner, the flame rod generates a microamp DC signal that tells the control board a flame is present and it is safe to keep the gas valve open. When the sensor fails — most often due to oxidation or carbon buildup on the rod — the control board cannot confirm ignition and shuts off the gas within 5–8 seconds. The result is a furnace that lights briefly, then goes out and locks out after 3 attempts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e LH33WZ518 | Genuine Carrier replacement | Factory-matched microamp sensing range for reliable flame confirmation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM sensors use the exact rod alloy and bracket geometry specified by Carrier engineering. Aftermarket versions can exhibit signal drift, causing nuisance lockouts even with a healthy flame.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Turn off power and gas before servicing. Tools needed: 1\/4\" nut driver, needle-nose pliers, fine steel wool or emery cloth (to clean mounting surface). Always verify gas is off and system has cooled before reaching into the heat exchanger area.\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 Engineered for the \u003cstrong\u003eCarrier PG9MXA060100AASA\u003c\/strong\u003e gas furnace. Also fits select Bryant, Carrier, and Payne units in the PG9MXA0, 58MEC, 58MTA, 58MTB, 352AAV, 352MAV, and 353BAV series — always verify your unit's data plate and existing part number before ordering. Need fitment confirmation? Our HVAC parts team is available to verify compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642056986995,"sku":"CARRIE-PG9MXA060100AASA-FLAME_SENSOR-LH33WZ518","price":27.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642057019763,"sku":"CARRIE-PG9MXA060100AASA-FLAME_SENSOR-LH33WZ518-GEN","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-flame-sensor-LH33WZ518_8ee5f468-28ae-470c-a92e-d55a11403865.jpg?v=1775031142","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg9mxa060100aasa-flame-sensor-cygrm8","provider":"National HVAC Parts","version":"1.0","type":"link"}