Hello, I have one Goodman GMP 150 and it shut down after 30 min aprox. and not restart without one manual reset, (shut off main voltage switch manually)
Do anybody have the schematic circuit of the Honeywell board control? Thanks!

You may want to clean the flame sensor if so equipped. You may also have a defective hi limit control or fan switch.

There is a wiring diagram on the back side of the blower door.