Came out today to investigate a system that had a repair made on 12/26/22. Upon arrival the Goodman furnace was calling for 70° heat and it was 63 in the home. I reset the system and observed what happened when the system tried to start.the igniter came on and lit the burners. The burners were on for 3 seconds then went out. I observed the system try to start several times. I powered the system down and removed the flame sensor. The flame sensor is pretty beat up. I installed a new flame sensor to see if that would resolve the issue. I tested the system and it started without any issues. I cycled the system on and off multiple times to ensure that the system is operating properly. Each time the system fired up without any issues. The system is operating properly at this time.