hi i have a whitfield model 30 pellet stove. not running to good.ever. last yr it worked on the lowest settings n was ok. has new high limit switches. new photo eye. cleaned it. it will ignite and turn off after 20 mins on low. doesn't last long at all on higher settings. i cleaned the photo eye. also kinda curious why it isnt looking through the glass that is located on top of the auger it kinda just points at steel. isnt it supposed to moniter the flame and heat? winters coming so better figure it out. thanks