Hello, I run my stove in the room temperature mode. I've noticed that my temperature knob may have a bad spot in it. I like to keep it set where I can have a temperature of about 68 to 69 degrees in the house near the stove. The stove will keep the temperature in the house at around 66 or goes from that to like 74 degrees. It's like there is a bad spot in the knob not letting me keep the temperature where I want. If I want to keep temperature in house near stove at like 66 degrees no problem. If I want to keep temperature at like 72 to 74 degrees near stove which is way to hot no problem. Anyone else seeing this on their Harman pellet stove?