I have a Profile 20 pellet stove purchased in January of 2000. The control board has been apparently failing for a couple of months and now will not start the stove at all. The problem initially started happening when it would run out of pellets. The stove would shut off and go into a mode where the board would flash on and off at about 1 second intervals. I was always able to press and hold the on/off button a few times and get it to work normally but last night we turned down the thermostat to a lower temperature and went to bed. When we got up this AM, it was flashing again and nothing I've tried will start it up. It didn't run out of pellets this time either. I suspect that the control board has failed but does anyone have other ideas? On that same train of thought, I've looked at replacement boards and find that all the board listed have a P/N of 16053941 while mine has the number 16023941 on a sticker. Is this the same board or is mine so old that no one stocks it anymore. The stove was manufactured by Hearth Trends not Lennox. Thanks in advance for any help!