4. Troubleshooting
Service Call Conditions
There are 4 levels of service call conditions.
Level Definition Reset Procedure
A
To prevent damage to the machine, the main machine
cannot be operated until the SC has been reset by a
service representative (see the note below).
Enter SP mode, and then turn the
power switch off and on.
B
SCs that disable only the features that use the defective
item. Although these SCs are not shown to the user un-
der normal conditions, they are displayed on the op-
eration panel only when the defective feature is
selected.
Turn the operation switch or main
switch off and on.
C
The SC history is updated. The machine can be oper-
ated as usual.
The SC will not be displayed. Only
the SC history is updated.
D
Turning the main switch off then on resets SCs displayed
on the operation panel. These are re-displayed if the
error occurs again.
Turn the operation switch off and
on.
SC Code Descriptions
• If a problem concerns a circuit board, disconnect and reconnect the connectors and then test the
machine. Often a loose or disconnected harness is the cause of the problem. Always do this before
you decide to replace the PCB.
• If a motor lock error occurs, check the mechanical load before you decide to replace the motor or
sensors.
• When a Level “A” or “B” SC occurs while in an SP mode, the machine cannot display the SC number.
If this occurs, check the SC number after leaving the SP mode.
• The machine reboots automatically when the machine issues a Level “D” SC code. This is done for
Level “D” SC codes only.
• Never turn off the power switch when the power LED is lit or flashing.
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