Symptom
Causes
Solutions
The display board or the control
board is malfunctioning.
The speed indicator will not
come on even if the power
switch is turned ON.
The power plug is come off the AC
outlet. Or it is not inserted securely.
Turn the power switch OFF and insert
the power plug into the outlet securely.
Immediately stop operation and contact
your dealer or the nearest service center.
The fuse is blown.
The power switch comes on
but rotation will not start.
Contact your dealer or the nearest service
center for troubles not listed here.
Replace the fuse with new one.
If the fuse is blown soon again,
immediately stop operation and contact
your dealer or the nearest service center.
Causes of troubles and solutions
6
- 18 –
The power cord plug is come off the
outlet. Or it is not inserted securely.
Turn the power switch OFF and insert
the power cord plug into the outlet.
The power source board is malfunctioning.
There is a malfunction in the control board.
The motor is malfunctioning.
The bearing is rusted.
Rotation shows hunting.
The control board is malfunctioning
The motor is malfunctioning.
The internal gear or the timing belt is
worn out.
Strange noise is heard.
The vacuum seal is worn out.
The motor is malfunctioning.
The internal gear or the timing belt is
worn out.
Replace the vacuum seal.
The drive assembly needs lubrication.
Vacuum level is low.
Decompression leak is
noticed.
The rotary joint is worn out.
The nozzle packing of the vacuum
nozzle set is deteriorated.
Replace the vacuum seal.
The vacuum seal is worn out.
The vacuum hose is deteriorated.
Replace the rotary joint.
Replace the nozzle packing of the
nozzle set.
Replace the vacuum hose.
The jack cannot be raised or
lowered.
The jack motor is malfunctioning.
The limit switch is malfunctioning.
The up/down switch is malfunctioning.
Lifting operation of the jack
drags excessively or is slow.
It does not lift completely.
The spring is deteriorated.
The jack slide bearing is worn out or
rusty.
The Alarm lamp came on.
Load beyond the rating is applied to
the motor.
Eliminate the cause of load and press
Run/Stop key to release the alarm status.
The jack lock part is damaged.
“
ALr” indication appeared.
Immediately stop operation and contact
your dealer or the nearest service center.
Immediately stop operation and contact
your dealer or the nearest service center.
Immediately stop operation and contact
your dealer or the nearest service center.
Immediately stop operation and contact
your dealer or the nearest service center.
