Is it a North American term then?, it's certainly not a European one, and not something I've ever seen in any American texts.
I don't know about North American vs European, but an over-current condition caused by a motor with bad bearings or an over-burdened or seized rotor is often called "LOCKED ROTOR AMPS"...and we often use the term "amperage" to signify current draw with electrical systems, especially AC/home wiring etc, motors, contactors, and refrigeration.
Not so much with (ordinary) *electronic* circuits because they rarely draw more than an amp or two anyway.
As far as the fan motor is concerned, is this occuring in the wintertime or a cold environment?
The time frame wasn't specified.
I have a general motors vehicle that has a "secondary intake" fan associated with the manifold. I get a check engine every few months because I have a bad checkvalve that allows condensation to backflow and either rust the bearings or freeze and sieze the motor in cooler months.
Instead of replacing it for the third time I have decided it is an unnecessary nuisance warning with minimal effect on my fuel efficiency and emissions. I'm a year away from replacing the vehicle anyway.
At any rate, just a thought if Ice may be your culprit, or at least might have been for one of them.