Heil furnace model PGF024K060A comes on fine runs to set temp kicks off heat, blower stays on but heat won't come back on until you shut down system

Have a heil 100,00 BTU furnace that is when it gets cold at night the burners will not stay burning, the electric pilot light is on but no ignition of the burners unless I shut the system down for a while. The blower stays blowing with no ignition of the ports

Where can I find a wiring diagram for a trane xe 1200 ac unit free on the internet

So far here's what I've got - 1. Thermostat calls for heat. 2. The inducer fan blows air. 3. 24v is sent to the pressure switch. 4. The pressure switch does not close (there is no voltage on the other side). Steps I've taken - 1. Jumping the pressure switch allows the furnace to...