I have a trane unit and every thing is working as it should when you turn it on. As the ignitor comes on the burners won't come on, any info ? Or what to check ?

Post model #, sounds like a bad ignition module is not powering gas control, or a good module is powering a bad gas control.

Trane xe80

XE80 is just the style. The actual model # is needed - look inside the unit.

Ud080c948h

Do you have a voltmeter? If so check for voltage at gas control valve while ignitor is glowing.

No, sorry I don't have one.

Get some beer, use it to lure someone who does. At this point, it may be unavoidable to call in a pro.

OK, I got one.Didn't take any beer. OK what next ?