I have a trekker that is less than two years old. When I started using it this season I am constantly getting feed errors when I wake up in the morning and my downstairs is freezing. I have the bluetooth thermostat set to turn the unit when it drops down two degrees lowers than what it should be. When i looked inside the chamber there is no unburnt fuel and very little ash. SO it turns itself on, then it must shutitself down and purge the fuel from the firepot. I first went back to my store that I purchased the unit from we called the manufacture. They suggested changing the tuning setting from 4 to 5. It worked for a day or so then the problem kept happening. So I adjusted it from 5 to 6 then eventually to 7. Issues happened now and again on 7 but its going through a lot of pellets. The default tuning is 4 and remained on that the prior season. Went back to the store, called manufacture again and they said to replace the exhaust probe. Exhaust probe ordered, swapped out, still happening. So I bit the bullet and had a tech come look at the unit. My unit is clean so that wasn't the issue and said there is nothing mechanically wrong with it that he can tell. Thought there might have been a vacuum issue but ran through it with the manufacture and it was fine. Last night into this morning it happened again. I adjusted the thermostat to try going on at a slightly warmer temperature but the problem still persists. This typically only happens overnight. Any thoughts or recommendation. My next step is maybe getting a new thermostat. Maybe the sensor in there is bad, i really don't know.