[Rick Lee]

I found the drain line and pulled the pvc pipe away to check for blockage. Looked clear to me and the L at the bottom ran downhill. So I poured about 1/3 liter of tap water down it and heard it all rush down and along the long drainl. Pretty sure it ain't clogged. I called the local HVAC place that serviced the unit before and the guy said it had to be from when I had the a/c on. That was a good three weeks ago last and I'm sure the drain pan was bone dry when I checked it after I got back from CA on 10/28. He said there's no way the heater could have produced that condensation and there was no other water source in the unit. I guess I'll just have to keep an eye on it and be sure to have it serviced when a/c season approaches.