We recently replaced the ignitor on our castle serenity. At the same time my husband moved it outside, cleaned the exhaust and replaced all the stove piping. Upon return to its throne and firing it up the auger would not drop pellets. On diagnostics the auger will turn when emptied out. It does seem to have a difficult time turning with pellets in there. It will not fire up at all if we are just trying to turn it on. Checking the more affordable fixes so far. We checked the temp switch reset button, we did a jump wire check on both the temp switch and the vacuum switch. No such luck. Is this just a weak motor and it needs replaced?