A few days ago, I had a three flash code (ESP) and the distribution blower would not start on my Accentra insert - but it was "humming" like it was getting power but would not spin. I pulled the insert out and cleaned the whole thing from top to bottom. I pulled the distribution blower and cleaned it thoroughly. You could eat off it the thing it was so clean. I put it all back together and it worked fine until this morning, when the distribution blower would not spin again. Once again, it is humming like it has power, but will not spin. I shut the stove down and restarted it twice, and still the distribution blower will not spin. I suspect the ESP is bad, but there is no "three flash code". Maybe my distribution blower is dying? I hope not - they are $400 here in Canada. Before I start replacing parts, any thoughts are appreciated!