so far I've replaced esp probe door gasket and cleaned out stove and pipes with no luck. Just fired back up to test out and with in 1/2 hour creosol back on fire wall behind burn pot, even starts to flame up on the fire wall just above flame guide.Can't be safe so I'm back to heating my house with my 1981 gas furnace , not cool or cheap. Worst part my dealer's tech is not even Harmen certified so this issue is above his pay grade fist time he saw a pellet stove was last fall and was never sent to harmen school and has no old timer to follow, so I'm alone on this, could anyone recommend a good Harmen tech in the new haven ct vicinity.I NEED HELP!