When I turn on the heat or AC the blower motor sometimes starts and other times it doesn't. If I pull the cover off and spin the squirrel cage by hand sometimes it will start up after getting it spinning. I can hear the relay kick in when I turn on the heat but sometimes it just won't start blowing. Does this mean that the motor is going out or could it possibly be something else? The unit is in a mobile home and it is a Nordyne model E2EH 015HA. The motor is 2 - speed, 3 ton 2.0 FLA 1/5 HP if that helps any.