On Tue, 15 Jan 2013 08:20:03 +0000 (UTC), Zen wrote:

Just as it gets cold, my Payne hot air propane-fired furnace broke!
http://www4.picturepush.com/photo/a/...g/11964117.jpg

All of a sudden, the blower just blows cold air constantly without letup.
The pilot flame never starts.
Obviously, the gas never lights up either.

This happened, all of a sudden.

Normally, it has an electronic pilot, which lights the gas about a minute
after the blower starts. There is plenty of propane.

Any troubleshooting ideas?

I think there are three main components:
1. The flame apparatus
2. The circuit board
3. The lockout switch

I'm inclined to just buy all three, and replace (and have a spare), since
I remember the last service call was expensive and the circuit board was
replaced in seconds after a three week wait for the parts to arrive.

Do you have any idea WHERE I can get the three main components?
http://www3.picturepush.com/photo/a/...g/11964131.jpg


Don't waste money throwing parts at it.
Get the model number, then post this with model number to alt.hvac.
You might get troubleshooting procedures there.
If not, get the manual which should allow you to pinpoint the problem.
For parts, just google the model number.