Found furnace not firing on call for heat. Looked thru sight glass and no error codes illuminated. Removed covers and watched unit cycle. Igniter lit and gas valve clicks but flame doesn’t light. Checked incoming gas pressure. 12.33inWg. When valve tries to open incoming pressure drops to 11.66inWg. Outgoing pressure is 0.199inWg. Turned unit off and bled system to free possible air in line. Rebooted system and same current readings. Tested voltage to gas valve. 25 volts to gas valve are current. Spoke with Greg, Danny, and Noah and they advised replacement of the gas valve.