Running speed is not stable
Possible causes:
1.AC power voltage is too low.
2.Tension of drive belt or running belt is too loose.
3.Poor adjustment of MCB.
4.MCB is damaged.
5.Motor is damaged.
Fix:
1.Check the power voltage by using
If the power voltage isn't within the range, look for a qualified
electrician for help.
2.Open the motor cover, if the belt has stretched and is slipping across the rollers when running.
Adjust the belt tension.
3. Remove the motor cover and run the machine at low speed, then adjust the IR COMP of MCB.
If it hasn't been improved, replace new MCB.
4. Replace new motor.
