I borught a new swordfish 240hv esc, And as soon as I hooked it up, It stared somking. Iv double cheacked every thing before I powered it up couse it coast me $300 , and as I pluged the battery (6s) in it stated smoking. The smoke was comeing form one of the tiny black Circuits or what every they are. Is this a common fault or is it a one in a million.
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