Last fall we had a Harman P68 installed and loved it. This spring when we were running it sparingly it started to loose flame when we filled it all the way up with pellets. Of course then hot weather started and we then had it serviced the first of September where they found that our fan blades were broke in several pieces ?? they replaced the fan blade and also put in a ESP probe. After that it was a warm week so we left it on Stove Mode at the lowest temp. setting, it seemed to be fine. But then it got colder at night over the weekend so I turned it up to the 5 temp setting and it didn't seem to get warmer. The flame would come up like it should, but then it would gradually cycle down to almost going out, then it would start this over. Last year I watched this stove all through the winter and I never saw it do this. It would always keep a consistent flame level when up on the higher heat settings. I called the owner of the store we purchased it at and he had me watch it for about an hour to see what it was dong. When on the lower setting it seemed to be fine, but when I ask for more heat it started this cycle over and would take about 7 minutes to go thru. Of course he came out on the day it was 60degrees, he watched it and also put the tester on it that showed temp for exhaust etc... He said he saw nothing wrong with it.?? So I've run it all weekend and still feel it is not running like it did this past season and is not heating up to the correct level. Has anyone else had this problem?? I know I"m not imagining this, but don't want to call him back up till I have an idea what the problem is??? Even thought about running up to a store that sells the Harman P68 & have them turn theirs on to see what it does at that setting. Help!