H-KING J3 Navy Cub Instructions Manual page 13

||Motor runs
1. Motor/ESC connection error
backwards
Servos not 1. The servo leads are connected
operating
properly
2. The servo is damaged.
1. Control surfaces not centered.
Difficult to trim
2. CoG is not in the correct
to the Rx incorrectly.
position.
1. Swap around any 2 of
the 3 ESC/motor wire
connections
1. Make sure the servo leads
are connected properly.
2. Replace servo.
1. Adjust the trims on the
transmitter.
2. Re-position the battery
suggested.
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