jamesgangnc wrote in news:b4f81cd1-dad7-4e35-85a3-
:

snip

Somebody else answered that once already. Basically it's not moving a
bunch of air so it's not "working" any more. Now that you know the
current you should able to design a circuit that alarms at the 8 amp
range and is off at the 12 amp range. A 1/4ohm power resistor will
give you about a 1 volt variation between the two.

And don't forget a delay or other override to handle the situation on startup
and shutdown as you pass through the range getting to 12 amps.