Called in a.m. and was given a window between 2:30 and 3:30. Showed up at 2:30. After I told him what I had tried, he knew right where to look, found the clogged trap, cleaned it, put it back on, and everything works great. Then went and checked the air intake pipes outside, and with that and an odor the furnace was producing was able to tell me the furnace will probably need replacing next year (furnace is 14 years old). Did not try to push me into services I didn't need or tell me I had to get the furnace now, but told me what was coming so I could plan for it. Very appreciative of that. Overall, this was a professional, effective, inexpensive encounter. I will definitely call them again and will probably be purchasing my new furnace there when the time comes. THANKS BADGER!!!