It may be that the blades are "sticking" when moving in the coarse
direction. More current is taken and the ECM "recognises" this a pitch
stop so giving the red light and sound warning. I've had this a few
times and is resolved by dismantling the hub, cleaning and regreasing.
If you need any CAP 140 bits, Maxwell Propulsion took over NSI's
stock: http://www.maxwellpropulsion.com/, look under inventory
reduction sale.
If you need a copy of the CAP 140 manual let me know and I'll send you
a photocopy.
Cheers
Simon Longstaff
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