trane xe 80 2 tries to fire up?

[mongo]

My trane furnace does not stay fired up on first try for more than a few seconds. When the thermostat sends to start it up, my fan comes on, then I hear the ignitor, and then it fires up and goes out. It waits 30 seconds and ignites again and stays on. I just cleaned out the dust inside and could there be dust in the gas venturris (sic) or something like that? thanks a lot!

[doc havoc]

Could be dust. Or gas pressure, or cracked hx, or improper venting, or restricted cross lighter, or flame senser, or faulty ignition control, or gas valve or heat anticipator etc.

[dougfamous]

Time to call and have the furnace serviced - there's nothing in the gas compartment that you can fix yourself.

[Senior Tech]

What they are trying to say is sorry, we can't help diy's. The best advice is to call a reputable hvac contractor and let them check it. It may just need a good, professional cleaning.

[mongo]

ok thanks guys....It's ok now...needed a little compressed air to blow it out.