Kerbl RotaBrush Classic Bedienungsanweisung Seite 31

o Motor failure.
• Check the two windings and replace the motor if necessary.
o Faulty board.
• Replace board.
4. The brush does not invert direction when under force:
o Trimmer R22 not set correctly.
• Turn trimmer R22 slightly anti-clockwise until the brush inverts direction under required force. If the trimmer limit switch is reached
without success, replace the board.
o Faulty board
• Replace board.
5. The brush inverts direction for five consecutive times then stops for 4 minutes; the display shows the alarm message "5":
o Motor mechanically blocked by foreign bodies.
• Free the brush from any foreign bodies.
o Trimmer R22 not set correctly.
• Turn trimmer R22 slightly clockwise until obtaining required force on brush, thus exiting the alarm condition.
Warning! The position of the trimmer must never exceed a half turn clockwise; otherwise, check motor absorption.
o Faulty board.
• Replace board.
o Motor with locked mechanical parts.
• Replace motor.
6. The brush attempts to start for five consecutive times but does not turn, then it stops for 4 minutes; the display shows the alarm
message "5":
o Motor is mechanically blocked.
• Free the brush from any foreign bodies.
• Replace the motor or any blocked mechanical parts.
31