I bought a used P30 FS that was well taken care of. It was in the house when they bought it (they never used it) and it sat for a couple of years. When I put it in place and plugged it in I got several fault lights. I went thru all the things I could think of like the door switch and auger being stuck etc. and several faults went away. Now the only one I have is one on the heat section, flashing lights on the "0" line and down from there and the word auger flashing. Any ideas what to check next???