What the technician needs to establish
Ask which event stops the burner. Is the control losing the flame signal, responding to a safety input, or losing a required electrical signal? Carrier identifies ignition and flame-sensing problems among causes of heating failure, but the installed furnace's diagnostic instructions govern the test. Carrier furnace troubleshooting.
You can share the sequence you have already noticed and any fault message visible without opening the cabinet. Include how long the burners stay on and whether the problem began after a repair. Do not remove a running furnace's panels, clean the flame sensor, reset a safety switch, or keep restarting it to reproduce the fault.
The useful result is a finding tied to the sequence: what the control detected, which test supported the diagnosis, and what the proposed repair will correct. A replaced sensor is not proof that flame sensing was the cause. A new control board is not a substitute for checking what told the old board to stop.
For the service request, say: “The burners light, go out before the house-air blower starts, and then retry.” That gives the technician a clear starting point and keeps the visit focused on the failed cycle.