I have a 5 year old Harman P61A that won't shut down when it reaches the desired room temp when its operating in the room temp mode. It automatically adjusts the flame from high flame right initial start up when the room is cold and as the room warms the flame adjusts down to an idle flame when the room is at the desired temp but just won't stop feeding pellets so it will shut off all together. I replaced the Exhaust Sensor Probe and Remote Room Temp Sensor, checked all the wire connections to the board and even took a working comp board out of my buddies stove and tried it in mine to rule out the board being the problem. I am out of ideas, anyone have anything else I can try?