Problem Solving A-5
Problem Solving Using the LEDs
Problem Solving Using the LEDs
When diagnosing a problem with the module, note that the problem is often indicated
by the states of the module LEDs. Table A-3 lists the states of the LEDs for various
error conditions that can occur during initial installation of the device, along with
probable causes and corrective actions to take.
Table A-3: Problem Solving Using the LEDs
Symptom
Probable Cause
Corrective Action
Power LED is off.
Bad power LED.
Replace the module.
The module is not
receiving power.
Check the power LED
on the DEChub 900.
If the DEChub 900
power LED is off, the
cause of the problem
is the DEChub 900
power supply.
See the troubleshooting
procedures in the
DEChub 900
MultiSwitch Owner’s
Manual.
If the DEChub power
LED is on and the
other power LEDs are
off, then the DEChub
has a power problem.
See the troubleshooting
procedures in the
DEChub 900
MultiSwitch Owner’s
Manual.
If the power LED
turns on when the
module is reseated in
the same slot, then the
module was not
properly seated.
Make sure the module is
properly seated in the
slot.
If the power LED
turns on when the
module is reseated in
another slot, then the
problem is with the
DEChub.
See the troubleshooting
procedures in the
DEChub 900
MultiSwitch Owner’s
Manual.
If the module does not
turn on in a known
good slot, then the
module is defective.
Replace the module.
