Bob,
I would recommend replacing the caps with some better Rubycon caps if you can. These are one of he weak points besides the cooling for the Castle controllers.
I would also add a bead of silicone between the power board and control board to keep it in place.
TG
Tyler Garrard
NAMBA 639/IMPBA 20525
T-Hydro @ 142.94mph former WR
It appears so. I had to replace a Phoenix Ice 50 that had blown the caps for no apparent reason other than trying to run a motor and prop (14X7) which should not have placed any strain on the ESC.
I was only charged $50.00 for the replacement.
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