My Bryant furnace stopped working in the middle of the night. Woke up to a cold house.

I have tried resetting the furnace by turning off power for a minute then trying again. Didn't work. The thermostat clicks and sends the call to heat, but nothing happens at the furnace.

I am not receiving any error codes. Just a solid red light indicating I have power.

I have disconnected the line from the pressure switch and blew through it. No resistance, clear.

Checked drain pan, clear no water.

Cleaned flame sensor with sandpaper.

Any ideas? The no error code is what is confusing me.

Thanks!