1) LUBE THE DECK BELT, IN ACCORDING WITH THE INSTRUCTION MANUAL.
2) lUBE THE ROLLERS BEARING
3) tEST THE INPUT VOLTAGE MOTOR, IF THERE ARE THE MOTOR NEED REPAIR.
4)tEST THE OUTPUT VOLTAGE BOARD, FOR INPUT VOLTAGE MOTOR, IF THERE ARE NOT THE BOARD IS FAULTY.
SEE THE BLOCK DIAGRAM ATTACHED.
God bless you
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