Check whether the position of the cto where the magnet is installed
falls off or is damaged.
Check whether there are obstacles in the cto operating range.
Check whether the Hall element on the cto is damaged.
Check whether the lead connecting the Hall element on the cto and
the PCB board is in poor contact or disconnected.
Check whether the motor on the cto is damaged.
Check whether the related circuit of the motor drive board on the cto
is damage.
Check whether the position of the yellow color wheel where the
magnet is installed falls off or is damaged.
Check whether there are obstacles in the yellow color wheel
operating range.
Check whether the Hall element on the yellow color wheel is
damaged.
Check whether the lead connecting the Hall element on the yellow
color wheel and the PCB board is in poor contact or disconnected.
Check whether the motor on the yellow color wheel is damaged.
Check whether the related circuit of the motor drive board on the
yellow color wheel is damage.
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