{"product_id":"carrier-undefined-gb1aav036090aaja","title":"OEM Carrier Flame Sensor LH33WZ511 for Model GB1AAV036090AAJA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Flame Sensor LH33WZ511 for Model GB1AAV036090AAJA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier flame sensor (LH33WZ511) ensures safe, reliable ignition on your GB1AAV036090AAJA gas furnace. The flame sensor uses flame rectification to verify the burners have lit after the igniter fires. If no flame is sensed within a few seconds, the control board closes the gas valve to prevent unburned gas buildup. Over time the sensor rod accumulates an oxide and carbon film that weakens the microamp signal, causing the furnace to light then shut down seconds later, a classic short-cycle and lockout symptom. Installing this OEM sensor restores a strong, stable flame signal matched to the GB1AAV036090AAJA control circuit. The repair is an easy DIY job: shut off power and gas, remove the single mounting screw, unplug the lead, and set the new sensor in the same position near the burner flame. Most jobs take about 15 minutes with a nut driver. A genuine OEM flame sensor outlasts and outperforms generic rods and bolt-on substitutes. In stock and ships same-day when ordered before 3PM CST.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model GB1AAV036090AAJA.\u003c\/p\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eSame-day shipping before 3 PM CST. 30-day returns on uninstalled parts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":62942810800499,"sku":"carrier-undefined-gb1aav036090aaja","price":18.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-flame-sensor-carrier-undefined-gb1a_3b95ffd3-6ca9-483d-998b-eafe827e7722.jpg?v=1781469075","url":"https:\/\/nationalhvacparts.com\/products\/carrier-undefined-gb1aav036090aaja","provider":"National HVAC Parts","version":"1.0","type":"link"}