Troubleshooting - Welch Allyn 49500 Manuel D'utilisation

TROUBLESHOOTING

If lamp is not
illuminating and...
fan is not
operating.
fan is operating.
1-10
POSSIBLE CAUSE
Light Source is not
plugged into either the
wall outlet or the power
cord socket.
Power switch is not
turned on.
The bottom cover is not
properly installed.
One or both fuses have
blown.
Power cord is damaged.
This may cause
intermittent operation.
No power is supplied to
the wall outlet.
The lamp was not able to
"cool down" before
restarting.
The Light Source has
overheated.
The lamp has burned out. Replace with a new Welch Allyn
SOLUTION
Plug the power cord into the wall
outlet and power cord socket at
back of unit.
Depress the "I" side of the power
switch.
Remove the bottom cover and
reinstall carefully, making sure
that the lip on the bottom fits into
the front of the housing and that
the thumbscrew is fully tightened.
Replace both fuses. Follow the
instructions in the fuse
replacement section. If fuses
continue to blow, return Light
Source to an authorized repair
center.
Replace the power cord with a
new Welch Allyn power cord.
Verify that the wall outlet has
power by checking the circuit
breaker status and by operating
other equipment at that wall
outlet.
Wait at least 15 seconds after
turning the Light Source off before
turning it back on.
Verify that all ventilation slots and
the fan area are not obstructed.
The Light Source should be
mounted on the supplied
mounting bracket and there
should always be at least 3-inches
clearance.
lamp. Refer to the lamp
replacement section.