The oven on my Viking range isn't working; it's been "dying" for a while in that when I turn it on, sometimes it worked and sometimes it didn't. The day I had the appliance guy here, it worked. He told me to replace the temperature knob, which I did. Still only worked occasionally and now is not working at all. When I turn it on to bake, I hear the flame catch and then I hear 2 series of 3 clicks and then it all stops. Nothing.

I also hear clicking on the range burners and I understand that's probably due to dirty igniters but at least they usually light.

Could the oven problem be dirty igniters, broken igniters or something altogether different?

Is this a job I can do myself? I'm great at following directions but otherwise have no repair skills!