I have a Quadra Fir Castile pellet stove. I was cleaned at the end of the season there are pellets in the hopper from last year. The first time it ran this season everything seemed to be fine it feed pellets and the blower came on the red indicator light was lit. The unit didn't ignite I had to push the reset button to get the stove to feed more pellets then it ignited. Do you think maybe the pellets left from last year are bad or is there something else I should be looking at. Thanks for any help!