My furnace worked fine last season, Air Conditioning worked great over the summer. This year I turned the switch to heat and the blower ran for about two minutes but then shut down? I went and looked at the furnace and I shut it off and turned it on again. The blower starts but the igniter does lit the furnace and I don't hear the gas turning on either? What can I check?

If you have a hot surface igniter it may be bad, see if there is a crack across the center of it, good luck, Mike

Pressure switch would be my first place to start in this instance