Thanks for the responses,
The timed AC isn't on, so i don't think it's that. Also, it was minus 15 degrees Celcius yesterday when it was doing this, and started shortly after i plugged it in. Would the coolant pump still run in that scenario?
My Outlander sometimes makes noise while it's off. (I think that it is during a charging state). It sounds like the low rumble of a clothes washing machine. Is this normal?