TNH_BNA5809

I have a Goodman Furnace (Model # PGB 024075-1. The other day I called for heat, the system is not fire up, then I came out to the unit outside to unplug the connection between the Smart valve and the ignitor. It is fire up and run for awhile, and shut itself off. Please help. Thanks

Smart valve connection problems. You might be able to get it positioned to keep running for awhile or try and tighten the connection.