Troubleshooting - NEC IT3510 Operation Manual

NEC IT Series
S 2 T
ECTION ROUBLESHOOTING
If trouble develops with the NEC IT3510/IT2510, follow the appropriate instructions
described in this section. If these measures fail to resolve the problem, contact your
dealer's service center.
Touch panel is
blank.
Start key does
not light green.
Power cannot
be turned on.
NEC IT3510/IT2510 Operations Manual
Condition
Power plug at wall outlet is
disconnected.
Power switch is off.
Touch panel does not light.
The thermostat inside the unit
has activated due to excessive
heat within the product, or
electrical interference due to
thunderstorms, etc.
The panel contrast is set too
dark.
The user has not been selected
(when the User Management
mode is activated).
Power cord is disconnected
from wall outlet.
The circuit breaker supplying
power to the wall outlet is
tripped.
Slow reduction in voltage.
Power failure occurs.
During the Stand-by Mode
Cause Countermeasure
Connect the power cord at the
wall outlet.
Turn on the power switch.
Press any key on the panel.
The time-out period can be
adjusted to run off the Touch
Panel LCD.
Turn off the power switch and
wait a few minutes to restore
power.
Adjust the panel contrast
setting.
Select a user.
Connect the power cord at the
wall outlet.
Reset the circuit breaker.
Turn off the power switch and
wait a few minutes before
restoring power.
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