When pellet stove is first plugged in, it turns off and on even though the orange call light if off and thermostat is lowered to 50*. I left it on for over an hour thinking it was cycling but nothing. Turned up the thermostat and orange call light come on, but the fan keeps turning off and then back on. Cleaned every thing that could be cleaned (blower, vacuum hose etc.) in the stove and same results. Any ideas?