PB2
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3.7. Troubleshooting the electric motor
If the LED is on, the motor power has been decreased. This prevents overheating of
the motor as a result of frequent overload. To decrease the temperature of the motor,
let the motor operate with no load at the maximum speed.
If the LED flashes fast, the automatic restart has been prevented after a power
failure. Then, to start the motor, switch it off and on.
If the LED flashes slow, the carbon brushes are almost worn and the motor
has been shut off. Replace the brushes with new ones specified by the manufacturer
of the motor.
3.8. Troubleshooting the battery motor
If the motor is frequently overloaded for extended periods, it will be shut off. To stop
the beeping signal, release the ON/OFF switch. If you feel that the motor or the
battery is warm, before use wait until its temperature decreases. To decrease the
temperature more quickly, let the motor operate with no load at the maximum speed.
If the LED flashes, the battery is almost discharged. To check the charge level,
press the LED activation button. If the battery is discharged fully, charge the battery
or replace to a fully charged.
