Well crap. #HVAC is busted. AGAIN. It's been off for months and now it's suddenly randomly turning on the blower motor and turning it off. When it turns on it will stay on for hours. Completely disconnected thermostat and it still does it. Has my ECM blower motor crapped out for a THIRD time? #HomeRepair #DIY

@fozztexx Well, sometimes it can be something really simple like the relay getting stuck.

Crossing my fingers for you that it is something that small.

@nazokiyoubinbou There's no way it's the relay getting stuck when nothing ever told it to turn on.
@fozztexx Fair enough. Unless the designer did it backwards from how it should have been done, which would be stupid I guess. (Lol, there is stuff like that out there!)