Yamato LR500 Series, Instruction Manual, Page: 13 / 19

10
TROUBLESHOOTING
Trouble Counteraction
The shaft does not revolve
although the power switch is
turned ON. The display panel
is not lit up.

Check if the power cable is connected to a receptacle or a
distribution board.

Check if it is power failure.

Check if the fuse is proper.
The display panel is lit up,
however, the shaft does not
revolve.

Check if it operated in the overload condition. In this case,
leave it for some time start it again.
Vibration is severe.

Check if the stirring shaft is set correctly.
Revolving speed does not
increase. The shaft stops
soon.

Check if the viscosity of the solution is proper.