Hi guys, Writing to you from North Pole, Alaska. It gets pretty cold here (-40F earlier this week). The issue I'm having is that the high temp sensor on my stove is tripping whenever I turn the stove up to setting 3 or higher. Model: Vista Flame VF100 Year Installed: 2013 (purchased new) Tonnage burned: approx. 2-3 tons per winter - so prob 18-20 tons total through the stove This problem started happening this year. Here is what I know so far: Exchanger is clean. Convection blower seems to be working fine. Feed rate trim is @ 1 Combustion air trim @ 4 We typically leave the stove at setting 2 all the time. Occasionally when its really cold I want to bump it up. Its been a mild winter so I haven't had the need until this past week. After approx. 1.5 hours burning on 3 the high temps sensor will pop. Suggestions? Should I just replace the sensor. I don't have an infrared thermometer, but I can get one to see what the back of the stove is getting to. I suppose that is the probably the best way to determine if the sensor is going bad? Thanks in advance for the help. I've often used the site for info and tips through the years I've been a pellet burner.