2019 174bh Emerson Thermostat problem

[DanG in PA]

I replaced my thermostat on my 2019 174bh with the very basic Emerson digital thermostat. I connected red wire to RC and white wire to W and removed the jumper the thermostat came with. My propane is full and my furnace worked in the fall with my old thermostat. My stove top works fine.
My furnace cycles on for 30-45 seconds and blows cold air then shuts off. I hit the reset button and it blows cold air for 1-2 minutes then shuts off. Anyone have any suggestions. Thanks in advance. DanG in PA.

[JimD]

See the attached document for troubleshooting tips. Problem sounds like the sail switch.

[DanG in PA]

I figured this out. Gas to stove worked but I later found out I had very little gas going to hot water heater. I tapped on regulator with a wrench a few times. The hot water heater got a better gas flow and the furnace started working. I guess sitting all winter had the gas/ regulator a little jammed up.