Arrived on site for no heat on 2025 Trane furnace. Turned on heat in order to test unit. Blower and inducer were running, however the heating cycle would go no further. Checked all plugs and connection and found nothing of concern. Tested rollout switches, temp limit switch and blower sensors for resistance and found no issues. Found E04 error on control board. Measured voltage on pressure switch and measured nothing. Tested voltage on plug into board from pressure switch and measured nothing. Also found bent burner and I was able to bend it back into shape. However it is not perfect and will need to be replaced. Spoke with Trane tech support and he advised me that the control board was bad and would need to be replaced. Upon reassembling the unit and powering on the unit completed the heating cycle without issue. This leads me to believe it is an intermittent issue that could come back. To be proactive about the situation we will go ahead and replace the control board to prevent futur
