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This is the genuine OEM Carrier flame sensor, part number 48GS400192, factory-specified for the Carrier PY1PEB036060ABAA gas furnace. The flame sensor — also called a flame rod — is a critical safety component that uses ionization/rectification to confirm that a burner flame is present after ignition. When it fails or becomes coated with oxidation, the control board loses the flame signal and initiates a safety lockout, typically shutting the burner off within 5 to 8 seconds of ignition. The result: a furnace that appears to start, fires briefly, then shuts down and goes into lockout — often repeatedly cycling before triggering a fault code.
Compatibility: Designed for the Carrier PY1PEB036060ABAA packaged gas furnace. Always verify your unit's data plate and existing part number before ordering. If you need fitment confirmation, our HVAC parts team is available to verify compatibility before you buy — same-day shipping available on all in-stock OEM parts.