Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.
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This genuine OEM Carrier flame sensor verifies that a flame is present after ignition, a critical safety function that tells the control board it's safe to keep the gas valve open. Designed as a direct-fit replacement for the Carrier G1RS125A20 gas furnace, it restores reliable flame detection and stops the frustrating cycle of a furnace that lights briefly then shuts down. A dirty or failing flame sensor is the single most common cause of short cycling and no-heat calls. Manufactured to exact factory specifications, this sensor ensures dependable, safe operation as your furnace was engineered to perform. Installation is rated easy for DIYers; most technicians swap it in 10 to 15 minutes with a single screw and one wire connection, and we recommend gently cleaning the mounting area first. Order before 3PM CST and your flame sensor ships same-day for fast delivery. Keep your Carrier furnace heating reliably with genuine OEM-grade parts. In stock now and ready to ship today.
This part is compatible with Carrier model G1RS125A20.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.